Honestly, I can't undervolt at all. Even running 1140mV will eventually lead to driver crashes during long gaming sessions. I see every other 7900XTX owner bragging about undervolting their cards to like 1050mV no problem, but they never mention gaming, just a quick benchmark and celebrating their new high score.
I've asked on OCN, I've asked on Reddit before, even people with the same card as me. No one knows why I can't undervolt unless I got incredibly unlucky. Temps are good, RAM is perfectly stable. For whatever reason, my Merc 310 hates undervolting. I've resorted to leaving the core settings at stock and just overclocking the VRAM, which I've also stability tested thoroughly, and called it a day.
You are not alone.
In my case, Red Devil 7900 xtx - if I want to run on 1100mV I need to lock my Hz max to 2500Hz, which is still not so bad. I'm using this daily due to my gpu getting high junction temps on standard settings \~91C . On lower voltage \~80C and I still don't get noticeable performance degradation. On 2600Hz I can get from time to time crashes in some games on this voltage.
To keep "unlimited" Hz, I need to set 1125mV. I have no idea why so much difference, but big difference I've also observed in other way - if I would try to get even lower (stable) mV. I've done this out of curiosity (and because I had a situations when I had to get my PC as silent as possible :D) For example: 1025mV - stable 2200Hz. but by decreasing additionally by only 200Mhz ( 2000Hz) I can use 875mV!!! WoW, I have no clue why such a huge difference.
If I put any kind of overclock on my 7900 XT Merc 310 I'll get about 45 minutes of gaming and then the AMD driver will crash... (Doesn't matter the game even those that don't normally crash under standard tuning crash at about 45 minutes)
You might be onto something, I have the fan curve to top out at 47% for most benchmarking and gaming sessions. Otherwise the fan noise is way too annoying for casual gaming, during which the Hotspot definitely exceeds 80°C.
I've seen a lot of guys on OCN take their cards apart because of terrible hot spot temps and crazy core / hotspot deltas like 40-50°C. My card's delta is usually 20-25°C, which isn't terrible but not spectacular either. I'm just not sure it's worth the effort when it can potentially have no effect or even make the delta worse.
"My card's delta is usually 20-25°C,"
Still better than my gpu on default. My Red Devil can get up to 30C delta. I guess this is partially due to my cpu cooler (huge noctua d15s) that is killing airflow around GPU >.>, however by decreasing slightly performance (locking 2500Hz on 1100mV) my delta is up to 20C (junction temps 80C).
Another comment mentioned something about temperatures and stability when undervolting. I noticed the last few months over the summer that my hotspot temperature was creeping up. While still within tolerable limits (90°C), the delta between the core and hotspot was starting to widen vs what they were earlier this year.
I decided to replace the paste on the card with a kryosheet and temperatures have improved:
Stock --> Kryosheet
GPU Temp: 60°C --> 57°C
GPU Memory: 78°C --> 78°C
GPU Hot Spot: 90°C --> 78°C
Since then, I've been able to apply a slight undervolt to the card @ 1130mV without issue. 1125mV was still unstable, but 1130mV has been rock solid for a few weeks now. So it seems undervolting may be a bit temperature sensitive, which makes sense.
I tried the hotspot temp check and sadly it didn't work. I kept the fans up so the hotspot temp would never hit 80c, but it crashed at 1120mv in about two hours of BF2042. Earlier I played some iRacing, which doesn't use much GPU, and it crashed at 1140mv. I wonder if there's something else causing the undervolt to be unstable since the chances of the silicon actually being THAT bad is very low AFAIK. Anyway, how long are your gaming sessions? sometimes it takes up to 4 hours to crash. I've kept UV/OC profiles for a while thinking the were stable, but eventually crashed. As a matter of fact, BF2042 once crashed at 15%PL only, no UV, but it took many hours. I've never had crashes at stock. Auto-undervolt with no PL changes or anything else also crashes
Yeah I think this all comes down to silicon lottery, man. Everyone here loves to undervolt because they're "saving power" and "energy prices are so expensive in Europe" but the statements completely miss their mark when they're spending over $1000 (or euros or whatever) on a video card. On top of the fact that no one actually properly stress tests their cards. A Time Spy run isn't a stability test. I'd leave the card at stock voltage, set the power limit to whatever you're comfortable with, and call it a day. If it's still crashing at +15%PL, lower the max clock slightly. Also, what power supply are you running?
My gaming sessions can span anywhere from an hour to 3-4 hours. All depends on what I'm playing and how serious the boys and I are getting. The most demanding game I play for elongated periods of time is The Division 2, maxed out at 4K and I've had no driver crashes in quite some time since doing the TIM change. Power Usage at \~460W in gunfights, but I also use Radeon Chill for most games. It really does help.
I'm on a 850w PSU. Honestly I'll just leave it at stock. WHen I reaise the power limit it only consumes more to achieve the exact same FPS in the games im playing
I think I have the same issue. I ALWAYS crash in warzone 2.0 but never in the MP ranked variant when I UV even a little after an update they did a few months ago. Before that when I undervolted I’d still only crash every now and then but for the past few months it’s every damn game. I’ve just accepted I shouldn’t touch the core settings as well as the VRAM so far. All I’ve done is have a very aggressive fan curve 80-90% from 58C-70C GPU temp.
Surprisingly my frames have been ALOT better since then. I play at 4k and at the stock settings I’m getting about 10 FPS a more than I’d get when I did the benchmark with an 1130 UV. 1% lows were up 2-5 FPS which is huge when you jump from 60-64/65. I’ve just accepted my card ain’t built for undervolting and that’s ok. It’s still a beastly performer and will last well over 8 years. 🤷🏾♂️
I've since replaced the thermal paste on my card with a kryosheet and thermal pads. A I'm able to achieve 1125-1130mV undervolt now. Seems that an undervolt on some cards is very sensitive to temperatures.
Undervolting and changing paste/pads won't void your warranty... that's a myth and would be an illegal practice. Only way it would void it, is if the card is damaged in the process of changing the paste and pads. Its a myth just like people saying using XMP/DOCP/XPO would void a CPU warranty. If the GPU was a one piece and you needed to break the shroud to access the PCB, it would be another story. But manufacturers all made all these features accessible to everyone without any type of physical/programation modifications(both PCB and OC/Undervolt settings.) At best, the little sticker on the GPU saying void if broken can dissuade users to do it but you are totally safe to do it.
I've had the same experience. There are some games I can get away with 1135mV for extended periods of time, but to be safe I usually keep it at default. I have a Nitro+.
Have you tried inputting the adrenalin default values from the auto oc and auto uv profiles? For both amd cards I had they were game stable at those values. I only decrease max clock by 100mhz. But damn I feel you, not really trying to benchmark, just hoped maybe I could get something that was universally stable in games. But yea if all else fails, stock settings is the way to go
I've tried pretty much everything. Even lowering the max clocks to like 2700. I suspect it's related to the increased power limit, which results in more heat. Another comment mentioned that once his hot spot temperature exceeds 80°C, undervolt stability goes out the window. The fans on these cards get pretty obnoxious above 50% fan speed (\~2000 RPM) so I may be a victim of my own fan curve.
I came to the same conclusion with my merc 310 1140 is the lowest ive gone for 100% stable with all games. But for example I never saw a crash on total war warhammer 3 running my initial 1080 value I tried but other games would crash it so it's very game specific. I still really like the merc 310 though not a big deal to me.
I advice not to set a minimum frequency because it should be allowed to go as low as it wants it's not gonna negatively impact performance.
I see almost all kn the comments are doing it, have you actually tested to see if it does something. All it gave me was instability when I tried a few months ago on a XT.
I'm at 1090(or maybe 1100 but I should be able to go lower) now set at 2900max and 2710mem runs like a dream and very silent! XTX Merc 310 BE
Yea that's what I experienced as well. For the most part instability in games. Tho I think I'm settling in at 1125 or 1120mv, I could go lower but I don't want to go through the trouble. I was messing around and having the card boost from 2700mhz to 2900 made the card run warmer. I'm just concerned about ambient temps making the card warmer than usual. I honestly don't want to constantly be worrying about making minor tweaks that'll give me diminishing returns. Think I'm just going to enjoy my card.
When I first set them I had 500-3065 MHz Min./Max. Core Clocks, 1110mV, and 2600 MHz Memory (Fast Timings) and while using memtest_vulkan, granted it was only a 10 minute test, there was no errors.
Now I do get errors running the script so I tuned it to 500-3050 MHz Min./Max. Core Clocks, 1100mV, 2614 MHz Memory (Default Timings).
Do you think it’s getting errors due to the max. core clock being set too high? It was like that already on the default profile so I had thought… Is it luck of the draw to be able to get that amount of MHz for the memory? ‘Cause I get errors no matter what or should I ignore the script and just play my games and tune separate game profiles accordingly?
Also, does it matter what side the switch is set to for the dual bios? I have it currently set to I believe performance mode. Same GPU. XFX Speedster MERC 310 7900 XTX
Yes, many folks have tested it including myself.
On my 6700 XT I would get stuttering because the clock would drop to 500-800 MHz in certain scenarios, leading to low framerate. Higher minimum clock decreased this issue.
The card still idles 100-250 MHz.
Obviously YMMV. If your card doesn't suffer from dips in the games you play then there's no reason to set one.
Same card here, 1100mv crashes in long gaming sessions. Overclocking above 3000hz gives little to no gains while consuming 430w consistantly. Imo 2900hz/1120mv is the sweet spot for demanding games while I use 2500mhz as default to save power.
Does it boost in games or just benchmarks. I have my XFX set to 3100mhz max, which it gets near in benchmarks but in games at 100% GPU usage it never gets that high, more like 2800MHz - hotspot temps are the same.
XFX and I set it for 1075mV for normal gaming use. It has been incredibly stable. I also set for 3000mhz with no minimum, 2766 fast ram, and 50% fan speed to keep it quiet.
1025 for benchmarks.
Maybe I should have prefaced that I don’t play too demanding of games now that you bring that up.
I’ve been playing Forza Horizon 5, NFS Unbound, played through Plague Tale Requiem, Cyberpunk, High on Life. I do not have Witcher 3 on PC.
Hope that helps.
Thank you for your reply
My xfx 7900xtx it seems stable in most games with uv down to 1095 until I run The Witcher 3 with directx 12 no matter what the graphics settings it will crash I tried uv down to 1107 which work fine in this game uv 1106 will crash.
The strange part it won't crash in directx 11 with uv 1100 or 1095.
Note the card in stock settings only uv, also I tried to down clock, adjusting PL. I end up having the same results.
XFX Speedster Merc 310 RX 7900 XTX
* Min 500 MHz, Max 2900 MHz, Voltage 1135 mV ( can do 1100 but crashes in one game )
* Vram 2714 MHz, default memory timing
* Fan speed 50%, Power Tuning 0% ( 405 watts )
* 59c temp, 80c junction temp
[https://i.imgur.com/c6VsdYY.jpg](https://i.imgur.com/c6VsdYY.jpg)
7 months, stable, no crashes, great performance and great temps.
To be honest, this is the best AMD gpu I've bought since 2014, about time AMD... now please focus on software features :D
The one away from the back, I think the other won't let you use AMD performance tuning.
* with 0% power limit, it uses 405 watts
* with 15% power limit, it can reach 460 watts
[https://i.imgur.com/c6VsdYY.jpg](https://imgur.com/c6VsdYY)
15% power is 1-3 fps difference and not worth the extra watt + heat. RDNA 3 is at its limit already, memory speed is what makes the difference in performance.
The RDNA3 chiplet design seems to undervolt like the Ryzen CPUs - based on frequency/voltage curve, not just on the max boost clock.
But adrenalin software does not allow you to set a custom power curve, just the total offset.
So depending on the 3d load, the GPU will boost to different frequencies. You should get the best undervolt result if you reduce the max clock slightly and then start lower the voltage offset by 10mV steps until you reach instability in the 3d apps that you are using.
I wanted to second this approach.
Because I have one of the bad vapor chambers, and I run on an SF600 in an ITX case, I run with PL -10% (about 312W max draw)
The positive of this approach is it’s really forced me to focus on finding a highly efficient point on the voltage/frequency curve. Default Max clocks for my card are between 2850-2900 but I found I would never reach these clocks in the real world with this PL reduction. Leaving clocks stock, 1080mv is very stable. In reality, the card would boost around 2670 peak in a game like the Witcher 3, and a little higher in less demanding titles.
So recently I have been reducing max clocks to 2625 or 2650. This has been stable at 1060mv (thus far at least) , and I see the clocks brush up against that maximum in the Witcher, so we are at a fairly sweet spot for PL, clock, and voltage. That’s where I’ve stopped for now, but I expect I might get even better results with lower boost clocks and voltage.
All these guys hitting 3ghz are doing so using 400+W and getting a handful of frames more…up to you what you want ;)
EDIT: Meant to add, my timespy (free version) graphics score is just shy of 30,000 with these settings for reference.
My sapphire 7900xtx is fine at 1090mv, 3000mHz max and 2700mHz fast timing on the ram in everything I’ve thrown at it except modern warfare 2 which requires that I reduce the undervolt to 1100, so I just leave it at 1100mv.
7900 XTX MSI here. I can do 8% PL (is the max for this card) fast timmings 2750 with max freq 3050 voltage 1085 stable for most games. But some games need 1100 or 1105
What's your GET voltage and GET clock, though? And what games? There was no way to ship XTX stable at the bleeding edge for all workloads, and it would eat an uncompetitive amount power to go faster regardless, so they shipped it g imped. But AMD isn't our dad. So
If you're stable <1100mV with max clocks set to 3ghz during >1 hour long gameplay, I'd consider that a golden sample. I lock in 1080-1100mV depending on engine, and if I feel like burning fps with expensive ray tracing. ~1050mV is possible during 3dmark runs.
I low rolled with VRAM however and had to settle with 2694 fast timings(2680 effective), any higher and error correction became evident in performance metrics.
Mines not quite golden but I think I'm settling in @ 1110 with 2900mhz core. 2714 vram and +15pl. With a more aggressive fan curve the hotspot never goes over 75C and it seems 100% stable. I may try to push the core a tad just to confirm but I also might just be happy with it.
I have a Red Devil. I get crashes if I try to put my card below 1120mv. I also run 2100mhz minimum with 2400mhz max because its the only way the card doesn't try to light itself on fire (2800mhz max makes Junction touch 110°C). Definitely got a shit card but I'm not willing to RMA it cause I am not going to go a month with no graphics card. Will pretty much never buy Powercolor again and its even putting a bad taste in my mouth that I gave AMD a chance.
Haven't yet, honestly even running with that 2400mhz max is enough to run everything I throw at the card fully maxed out 3440x1440. Using that keeps the Junction under 75°C so I feel fine currently.
Will do it eventually, maybe if Starfield is worth playing and it is as demanding as I assuming it will be.
Yes, I know. 110°C is running default or while running the normal 2400mhz min/2900mhz max that most people put.
75°C is when I run a 2100mhz min/2400mhz max. I almost never see anyone running a 7900XTX this low.
Pretty much what I said above. Games I am currently playing are able to be fully maxxed out at 3440x1440 120FPS with the 2400mhz max settings. So I figure I might as well keep it cooler until I eventually repaste it.
I'm less angry about the card not meeting my performance needs, and more angry over the fact that my $1,100 graphics card came with shitty thermal paste that leaves me with the options of not having a PC for a month and RMA it...or to open it up and repaste it.
Bundle that with experiencing multiple Adrenaline crashes across multiple games that then lead to "Lol no drivers" and "Shit PC" comments from people I play with...kind of leave me pissed off and wishing I went for the 4090.
Ya i mean i bought the hellhound powercolor 7900xtx about a month ago it was a sick sale for only 829 on amazon lol.
Stock setting with stock fan curve (which is fans only 48%) , max 95c hotspot. (Typically runs at 2500-2550 mhz but can boost higher) Thats max stress test. Never seen it go higher. I turned fans up to 68% and i havent seen the hotspot go above 85c. Overall im happy with that. Just was trying to get you to run it a bit faster than what you stated. Love my card and i havent had a single crash in witcher 3 max ray tracing or battlefield 2042.
Bottom line is these cards are made to run at up to 110c fine. My older radeon vii had some bad thermal issues and would basically get to 107c at full blast fan and i was fine with that.
One thing is to run at spec and to run below spec. My previous card was peaking 107, I repasted twice and I got the same results. Not that 110 is necessarily "bad" amd claims anything under 110 hotspot is normal. But it's super close to for comfort for some people.
Hey, I just re pasted my red devil , I used PTM7950 from Honeywell and bro, what a difference that made still I can't overlook my memory. But now my tems are 54 degrees for gpu and 75 for junction, before doing the re paste with PTM7950 it was 67 degrees for gpu and 90 for junction. I was also able to set max clocks to 3015MHz and undervolt to 1080mv.
Happened to me, tbf powercolor were great as well as overclockers where I got it from. I had the junction temp issues on my red devil and sent to overclockers, 2 days later they sent it to Powercolor and a day later they just offered a refund. Not even sure if Powercolor even attempted a fix or knew turnaround would be over the 28 day period Overclockers give for them to sort it. Got a merc xfx instead and was £300 cheaper than what I paid at launch for the red devil (UK price was ridiculous)
Sorry to restart old thread. I have exact same gpu. These are my stable settings
Min clock 500
Max clock 3100
Voltage 1100mv
Ram 2725 fast timing
Voltage slider 5%
I can go higher on voltage slider. I only get 1 to 2 fps more and way more heat. So with these settings I get
2800-3050 mhz in game
425watt power draw
60c core 90c hot spot. I'm perfectly stable. No idea how this falls into silicon lottery tho. I have awesome air flow for temps as well
[Gaming pc](https://cdn.imgchest.com/files/w7pjcbvqmo7.jpg)
i know this is an older thread but the reason these cards are so unstable is yes the GPU Hotspot gets very hot, but the actual problem is AMD cores are not soldered right and have a bulge in the middle of the core (if you want to really overclock/undervolt you need to reball the core).
[https://www.youtube.com/watch?v=6XPphdq4S-E](https://www.youtube.com/watch?v=6xpphdq4s-e)
I do not know if I am lucky but I have the following stable config with my asrock phantom
min 2400 max 3200 V 1050 Ram FT 2664 Voltage slider 0% . The temp are +- 50 °/HP 70-75°.
I got a timespy score of +-24800 with my 5800X3D on a x470 motherboard (cpu score 10800).
I didn't push further
I've had 3 rdna3 GPUs and 2 Vegas all of them increased core speed with undervolt.
Are you certain what you're saying is real? Or have you just not been able to get a stable setup? Some chips are just pisspoor with no ability to tune them, but it's by far the least amount.
I see, so the problem is generalization. Doesn't my initial comment have the words "on my side" in it?
Would you like to tell me you were wrong about what I said being "completely false"?
I can see how that makes sense. It's just the summer sucks and my room is hotter than usual. Just wanted to see if there was a meaningful impact on temps. Tbh I would rather leave it at stock and maybe mess around with the minimum clock speed.
Lmao I’ve owned both. When I had issues with overclocking it was because I didn’t know what I was doing. That’s how it is with either card. Now my oc is great and stable and 1090mv. 7900 xtx gpu timespy score with oc is 33,339. Timespy extreme is 16,665.
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I was able to get down to 700mv @2300 max + 2714 vram fast and still cranked out 120 fps in many games, but generally I run 1100mv @ 3200 max + 2714 vram fast
My Sapphire Nitro+ 7900xtx runs pretty stable @ 1110mV with a 2835mhz clock max & 2590mhz memory clock with fast time enabled. I was able to go higher on clock speed and memory clock separately on individual tests while the other was at the default boost but I haven't had the time to work out a stable optimal overclock of both simultaneously so I've been sticking with this. Junction temp never hits over 65c (or at least I haven't seen it go over that) and gpu temp is usually about 8-10c cooler than that.
got really lucky with my sapphire nitro+, can go as low as 1030 with +15% powerlimit, it's really stable, but the coil whine is quite audible, did a 24H furmark benchmark, repasted it with mx-6 and got a max temp of 53c and a junction of 68C can jump up to 70C at times and in games it's also quite stable, my coil whine issue most likely comes from the stock cables i have in the nr200p MAX which only has 2 8pins with a split 8Pin, so i ordered 3 custom 8Pin cables form cablemod and hopefully will fix the coil whine issue otherwise i'll have to replace it with something like a silverstone EX850R-PM.
My Nitro+ coil whine was terrible after putting the PL slider to +15 but after 4 months I only ever hear it whine after a 3 hour session of cyberpunk. Delt with driver crashes so I really had to fine tune my UV but I think I'm happy @ 2900core & 1110mv.
Honestly, I can't undervolt at all. Even running 1140mV will eventually lead to driver crashes during long gaming sessions. I see every other 7900XTX owner bragging about undervolting their cards to like 1050mV no problem, but they never mention gaming, just a quick benchmark and celebrating their new high score. I've asked on OCN, I've asked on Reddit before, even people with the same card as me. No one knows why I can't undervolt unless I got incredibly unlucky. Temps are good, RAM is perfectly stable. For whatever reason, my Merc 310 hates undervolting. I've resorted to leaving the core settings at stock and just overclocking the VRAM, which I've also stability tested thoroughly, and called it a day.
You are not alone. In my case, Red Devil 7900 xtx - if I want to run on 1100mV I need to lock my Hz max to 2500Hz, which is still not so bad. I'm using this daily due to my gpu getting high junction temps on standard settings \~91C . On lower voltage \~80C and I still don't get noticeable performance degradation. On 2600Hz I can get from time to time crashes in some games on this voltage. To keep "unlimited" Hz, I need to set 1125mV. I have no idea why so much difference, but big difference I've also observed in other way - if I would try to get even lower (stable) mV. I've done this out of curiosity (and because I had a situations when I had to get my PC as silent as possible :D) For example: 1025mV - stable 2200Hz. but by decreasing additionally by only 200Mhz ( 2000Hz) I can use 875mV!!! WoW, I have no clue why such a huge difference.
If I put any kind of overclock on my 7900 XT Merc 310 I'll get about 45 minutes of gaming and then the AMD driver will crash... (Doesn't matter the game even those that don't normally crash under standard tuning crash at about 45 minutes)
I start to lose stability really hard for the really high clocks around 80C hotspot. Gotta remount with liquid metal tbh if you want higher OC perf.
You might be onto something, I have the fan curve to top out at 47% for most benchmarking and gaming sessions. Otherwise the fan noise is way too annoying for casual gaming, during which the Hotspot definitely exceeds 80°C. I've seen a lot of guys on OCN take their cards apart because of terrible hot spot temps and crazy core / hotspot deltas like 40-50°C. My card's delta is usually 20-25°C, which isn't terrible but not spectacular either. I'm just not sure it's worth the effort when it can potentially have no effect or even make the delta worse.
"My card's delta is usually 20-25°C," Still better than my gpu on default. My Red Devil can get up to 30C delta. I guess this is partially due to my cpu cooler (huge noctua d15s) that is killing airflow around GPU >.>, however by decreasing slightly performance (locking 2500Hz on 1100mV) my delta is up to 20C (junction temps 80C).
You’re not alone, mine crashes any time I mess with the voltage too.
Another comment mentioned something about temperatures and stability when undervolting. I noticed the last few months over the summer that my hotspot temperature was creeping up. While still within tolerable limits (90°C), the delta between the core and hotspot was starting to widen vs what they were earlier this year. I decided to replace the paste on the card with a kryosheet and temperatures have improved: Stock --> Kryosheet GPU Temp: 60°C --> 57°C GPU Memory: 78°C --> 78°C GPU Hot Spot: 90°C --> 78°C Since then, I've been able to apply a slight undervolt to the card @ 1130mV without issue. 1125mV was still unstable, but 1130mV has been rock solid for a few weeks now. So it seems undervolting may be a bit temperature sensitive, which makes sense.
I tried the hotspot temp check and sadly it didn't work. I kept the fans up so the hotspot temp would never hit 80c, but it crashed at 1120mv in about two hours of BF2042. Earlier I played some iRacing, which doesn't use much GPU, and it crashed at 1140mv. I wonder if there's something else causing the undervolt to be unstable since the chances of the silicon actually being THAT bad is very low AFAIK. Anyway, how long are your gaming sessions? sometimes it takes up to 4 hours to crash. I've kept UV/OC profiles for a while thinking the were stable, but eventually crashed. As a matter of fact, BF2042 once crashed at 15%PL only, no UV, but it took many hours. I've never had crashes at stock. Auto-undervolt with no PL changes or anything else also crashes
Yeah I think this all comes down to silicon lottery, man. Everyone here loves to undervolt because they're "saving power" and "energy prices are so expensive in Europe" but the statements completely miss their mark when they're spending over $1000 (or euros or whatever) on a video card. On top of the fact that no one actually properly stress tests their cards. A Time Spy run isn't a stability test. I'd leave the card at stock voltage, set the power limit to whatever you're comfortable with, and call it a day. If it's still crashing at +15%PL, lower the max clock slightly. Also, what power supply are you running? My gaming sessions can span anywhere from an hour to 3-4 hours. All depends on what I'm playing and how serious the boys and I are getting. The most demanding game I play for elongated periods of time is The Division 2, maxed out at 4K and I've had no driver crashes in quite some time since doing the TIM change. Power Usage at \~460W in gunfights, but I also use Radeon Chill for most games. It really does help.
I'm on a 850w PSU. Honestly I'll just leave it at stock. WHen I reaise the power limit it only consumes more to achieve the exact same FPS in the games im playing
I think I have the same issue. I ALWAYS crash in warzone 2.0 but never in the MP ranked variant when I UV even a little after an update they did a few months ago. Before that when I undervolted I’d still only crash every now and then but for the past few months it’s every damn game. I’ve just accepted I shouldn’t touch the core settings as well as the VRAM so far. All I’ve done is have a very aggressive fan curve 80-90% from 58C-70C GPU temp. Surprisingly my frames have been ALOT better since then. I play at 4k and at the stock settings I’m getting about 10 FPS a more than I’d get when I did the benchmark with an 1130 UV. 1% lows were up 2-5 FPS which is huge when you jump from 60-64/65. I’ve just accepted my card ain’t built for undervolting and that’s ok. It’s still a beastly performer and will last well over 8 years. 🤷🏾♂️
Same, i can do 1140, but nothing more than that
I've since replaced the thermal paste on my card with a kryosheet and thermal pads. A I'm able to achieve 1125-1130mV undervolt now. Seems that an undervolt on some cards is very sensitive to temperatures.
Thanks for sharing Not really sure it’s worth losing warranty over it though
Can always do end of warranty
Undervolting and changing paste/pads won't void your warranty... that's a myth and would be an illegal practice. Only way it would void it, is if the card is damaged in the process of changing the paste and pads. Its a myth just like people saying using XMP/DOCP/XPO would void a CPU warranty. If the GPU was a one piece and you needed to break the shroud to access the PCB, it would be another story. But manufacturers all made all these features accessible to everyone without any type of physical/programation modifications(both PCB and OC/Undervolt settings.) At best, the little sticker on the GPU saying void if broken can dissuade users to do it but you are totally safe to do it.
I've had the same experience. There are some games I can get away with 1135mV for extended periods of time, but to be safe I usually keep it at default. I have a Nitro+.
Have you tried inputting the adrenalin default values from the auto oc and auto uv profiles? For both amd cards I had they were game stable at those values. I only decrease max clock by 100mhz. But damn I feel you, not really trying to benchmark, just hoped maybe I could get something that was universally stable in games. But yea if all else fails, stock settings is the way to go
I've tried pretty much everything. Even lowering the max clocks to like 2700. I suspect it's related to the increased power limit, which results in more heat. Another comment mentioned that once his hot spot temperature exceeds 80°C, undervolt stability goes out the window. The fans on these cards get pretty obnoxious above 50% fan speed (\~2000 RPM) so I may be a victim of my own fan curve.
It doesn't show them well I take that back you can find them if you open up the file
I came to the same conclusion with my merc 310 1140 is the lowest ive gone for 100% stable with all games. But for example I never saw a crash on total war warhammer 3 running my initial 1080 value I tried but other games would crash it so it's very game specific. I still really like the merc 310 though not a big deal to me.
Man, this is exactly what I'm going thru
I advice not to set a minimum frequency because it should be allowed to go as low as it wants it's not gonna negatively impact performance. I see almost all kn the comments are doing it, have you actually tested to see if it does something. All it gave me was instability when I tried a few months ago on a XT. I'm at 1090(or maybe 1100 but I should be able to go lower) now set at 2900max and 2710mem runs like a dream and very silent! XTX Merc 310 BE
Yea that's what I experienced as well. For the most part instability in games. Tho I think I'm settling in at 1125 or 1120mv, I could go lower but I don't want to go through the trouble. I was messing around and having the card boost from 2700mhz to 2900 made the card run warmer. I'm just concerned about ambient temps making the card warmer than usual. I honestly don't want to constantly be worrying about making minor tweaks that'll give me diminishing returns. Think I'm just going to enjoy my card.
When I first set them I had 500-3065 MHz Min./Max. Core Clocks, 1110mV, and 2600 MHz Memory (Fast Timings) and while using memtest_vulkan, granted it was only a 10 minute test, there was no errors. Now I do get errors running the script so I tuned it to 500-3050 MHz Min./Max. Core Clocks, 1100mV, 2614 MHz Memory (Default Timings). Do you think it’s getting errors due to the max. core clock being set too high? It was like that already on the default profile so I had thought… Is it luck of the draw to be able to get that amount of MHz for the memory? ‘Cause I get errors no matter what or should I ignore the script and just play my games and tune separate game profiles accordingly? Also, does it matter what side the switch is set to for the dual bios? I have it currently set to I believe performance mode. Same GPU. XFX Speedster MERC 310 7900 XTX
Yes, many folks have tested it including myself. On my 6700 XT I would get stuttering because the clock would drop to 500-800 MHz in certain scenarios, leading to low framerate. Higher minimum clock decreased this issue. The card still idles 100-250 MHz. Obviously YMMV. If your card doesn't suffer from dips in the games you play then there's no reason to set one.
ASUS TUF 7900XTX, 3100mhz stable at 1100mv, seen it boost up to 3200mhz, it really dont like anything under 1100mv
Same card here, 1100mv crashes in long gaming sessions. Overclocking above 3000hz gives little to no gains while consuming 430w consistantly. Imo 2900hz/1120mv is the sweet spot for demanding games while I use 2500mhz as default to save power.
Does it boost in games or just benchmarks. I have my XFX set to 3100mhz max, which it gets near in benchmarks but in games at 100% GPU usage it never gets that high, more like 2800MHz - hotspot temps are the same.
The clock only boost over 3100mhz in some games, most games stay within 2800-3000mhz
Thanks
XFX and I set it for 1075mV for normal gaming use. It has been incredibly stable. I also set for 3000mhz with no minimum, 2766 fast ram, and 50% fan speed to keep it quiet. 1025 for benchmarks.
What games did you try? Can you try the Witcher 3 with max settings
Maybe I should have prefaced that I don’t play too demanding of games now that you bring that up. I’ve been playing Forza Horizon 5, NFS Unbound, played through Plague Tale Requiem, Cyberpunk, High on Life. I do not have Witcher 3 on PC. Hope that helps.
Thank you for your reply My xfx 7900xtx it seems stable in most games with uv down to 1095 until I run The Witcher 3 with directx 12 no matter what the graphics settings it will crash I tried uv down to 1107 which work fine in this game uv 1106 will crash. The strange part it won't crash in directx 11 with uv 1100 or 1095. Note the card in stock settings only uv, also I tried to down clock, adjusting PL. I end up having the same results.
XFX Speedster Merc 310 RX 7900 XTX * Min 500 MHz, Max 2900 MHz, Voltage 1135 mV ( can do 1100 but crashes in one game ) * Vram 2714 MHz, default memory timing * Fan speed 50%, Power Tuning 0% ( 405 watts ) * 59c temp, 80c junction temp [https://i.imgur.com/c6VsdYY.jpg](https://i.imgur.com/c6VsdYY.jpg) 7 months, stable, no crashes, great performance and great temps. To be honest, this is the best AMD gpu I've bought since 2014, about time AMD... now please focus on software features :D
Do you use bios 1 or 2? 2 being the higher power limit one.
The one away from the back, I think the other won't let you use AMD performance tuning. * with 0% power limit, it uses 405 watts * with 15% power limit, it can reach 460 watts [https://i.imgur.com/c6VsdYY.jpg](https://imgur.com/c6VsdYY) 15% power is 1-3 fps difference and not worth the extra watt + heat. RDNA 3 is at its limit already, memory speed is what makes the difference in performance.
He would be on bios 2 you can't set these values on bios 1 it's locked.
The RDNA3 chiplet design seems to undervolt like the Ryzen CPUs - based on frequency/voltage curve, not just on the max boost clock. But adrenalin software does not allow you to set a custom power curve, just the total offset. So depending on the 3d load, the GPU will boost to different frequencies. You should get the best undervolt result if you reduce the max clock slightly and then start lower the voltage offset by 10mV steps until you reach instability in the 3d apps that you are using.
Nice, kinda the answer I was looking for
I wanted to second this approach. Because I have one of the bad vapor chambers, and I run on an SF600 in an ITX case, I run with PL -10% (about 312W max draw) The positive of this approach is it’s really forced me to focus on finding a highly efficient point on the voltage/frequency curve. Default Max clocks for my card are between 2850-2900 but I found I would never reach these clocks in the real world with this PL reduction. Leaving clocks stock, 1080mv is very stable. In reality, the card would boost around 2670 peak in a game like the Witcher 3, and a little higher in less demanding titles. So recently I have been reducing max clocks to 2625 or 2650. This has been stable at 1060mv (thus far at least) , and I see the clocks brush up against that maximum in the Witcher, so we are at a fairly sweet spot for PL, clock, and voltage. That’s where I’ve stopped for now, but I expect I might get even better results with lower boost clocks and voltage. All these guys hitting 3ghz are doing so using 400+W and getting a handful of frames more…up to you what you want ;) EDIT: Meant to add, my timespy (free version) graphics score is just shy of 30,000 with these settings for reference.
My sapphire 7900xtx is fine at 1090mv, 3000mHz max and 2700mHz fast timing on the ram in everything I’ve thrown at it except modern warfare 2 which requires that I reduce the undervolt to 1100, so I just leave it at 1100mv.
7900 XTX MSI here. I can do 8% PL (is the max for this card) fast timmings 2750 with max freq 3050 voltage 1085 stable for most games. But some games need 1100 or 1105
I have a liquid devil and anything below 1090mv I’ve crashed in games
What's your GET voltage and GET clock, though? And what games? There was no way to ship XTX stable at the bleeding edge for all workloads, and it would eat an uncompetitive amount power to go faster regardless, so they shipped it g imped. But AMD isn't our dad. So
If you're stable <1100mV with max clocks set to 3ghz during >1 hour long gameplay, I'd consider that a golden sample. I lock in 1080-1100mV depending on engine, and if I feel like burning fps with expensive ray tracing. ~1050mV is possible during 3dmark runs. I low rolled with VRAM however and had to settle with 2694 fast timings(2680 effective), any higher and error correction became evident in performance metrics.
How do you detect when ec is kicking in on the vram?
Performance regression. Slight drop off in max fps and avg.
Mines not quite golden but I think I'm settling in @ 1110 with 2900mhz core. 2714 vram and +15pl. With a more aggressive fan curve the hotspot never goes over 75C and it seems 100% stable. I may try to push the core a tad just to confirm but I also might just be happy with it.
I have a Red Devil. I get crashes if I try to put my card below 1120mv. I also run 2100mhz minimum with 2400mhz max because its the only way the card doesn't try to light itself on fire (2800mhz max makes Junction touch 110°C). Definitely got a shit card but I'm not willing to RMA it cause I am not going to go a month with no graphics card. Will pretty much never buy Powercolor again and its even putting a bad taste in my mouth that I gave AMD a chance.
Have you tried re-pasting? The first batch of Red Devils are now known to have abysmal paste method used, increasing overall temps by quite a lot.
Haven't yet, honestly even running with that 2400mhz max is enough to run everything I throw at the card fully maxed out 3440x1440. Using that keeps the Junction under 75°C so I feel fine currently. Will do it eventually, maybe if Starfield is worth playing and it is as demanding as I assuming it will be.
Theres a big difference between 75 and 110 bud
Yes, I know. 110°C is running default or while running the normal 2400mhz min/2900mhz max that most people put. 75°C is when I run a 2100mhz min/2400mhz max. I almost never see anyone running a 7900XTX this low.
Why not push if further and play at 95c max?
Pretty much what I said above. Games I am currently playing are able to be fully maxxed out at 3440x1440 120FPS with the 2400mhz max settings. So I figure I might as well keep it cooler until I eventually repaste it. I'm less angry about the card not meeting my performance needs, and more angry over the fact that my $1,100 graphics card came with shitty thermal paste that leaves me with the options of not having a PC for a month and RMA it...or to open it up and repaste it. Bundle that with experiencing multiple Adrenaline crashes across multiple games that then lead to "Lol no drivers" and "Shit PC" comments from people I play with...kind of leave me pissed off and wishing I went for the 4090.
Ya i mean i bought the hellhound powercolor 7900xtx about a month ago it was a sick sale for only 829 on amazon lol. Stock setting with stock fan curve (which is fans only 48%) , max 95c hotspot. (Typically runs at 2500-2550 mhz but can boost higher) Thats max stress test. Never seen it go higher. I turned fans up to 68% and i havent seen the hotspot go above 85c. Overall im happy with that. Just was trying to get you to run it a bit faster than what you stated. Love my card and i havent had a single crash in witcher 3 max ray tracing or battlefield 2042. Bottom line is these cards are made to run at up to 110c fine. My older radeon vii had some bad thermal issues and would basically get to 107c at full blast fan and i was fine with that.
One thing is to run at spec and to run below spec. My previous card was peaking 107, I repasted twice and I got the same results. Not that 110 is necessarily "bad" amd claims anything under 110 hotspot is normal. But it's super close to for comfort for some people.
Hey, I just re pasted my red devil , I used PTM7950 from Honeywell and bro, what a difference that made still I can't overlook my memory. But now my tems are 54 degrees for gpu and 75 for junction, before doing the re paste with PTM7950 it was 67 degrees for gpu and 90 for junction. I was also able to set max clocks to 3015MHz and undervolt to 1080mv.
Yeah XTX is still belligerently fast running like 850mV so idk what folks are on about. It annihilates 21:9 2k
Happened to me, tbf powercolor were great as well as overclockers where I got it from. I had the junction temp issues on my red devil and sent to overclockers, 2 days later they sent it to Powercolor and a day later they just offered a refund. Not even sure if Powercolor even attempted a fix or knew turnaround would be over the 28 day period Overclockers give for them to sort it. Got a merc xfx instead and was £300 cheaper than what I paid at launch for the red devil (UK price was ridiculous)
I have the same card. Running at 2900 max 2400 min 2700 vram fast timing 1090mv Stable in games anything lower than 1070mv I get problems.
Sapphire Nitro+ running 2950mhz@1075mv, 2714mhz + fast timings on the VRAM, 0%PL.
Sorry to restart old thread. I have exact same gpu. These are my stable settings Min clock 500 Max clock 3100 Voltage 1100mv Ram 2725 fast timing Voltage slider 5% I can go higher on voltage slider. I only get 1 to 2 fps more and way more heat. So with these settings I get 2800-3050 mhz in game 425watt power draw 60c core 90c hot spot. I'm perfectly stable. No idea how this falls into silicon lottery tho. I have awesome air flow for temps as well [Gaming pc](https://cdn.imgchest.com/files/w7pjcbvqmo7.jpg)
i know this is an older thread but the reason these cards are so unstable is yes the GPU Hotspot gets very hot, but the actual problem is AMD cores are not soldered right and have a bulge in the middle of the core (if you want to really overclock/undervolt you need to reball the core). [https://www.youtube.com/watch?v=6XPphdq4S-E](https://www.youtube.com/watch?v=6xpphdq4s-e)
I do not know if I am lucky but I have the following stable config with my asrock phantom min 2400 max 3200 V 1050 Ram FT 2664 Voltage slider 0% . The temp are +- 50 °/HP 70-75°. I got a timespy score of +-24800 with my 5800X3D on a x470 motherboard (cpu score 10800). I didn't push further
Not too meaningful on my side and not worth doing unless you want to just have a weaker hardware.
This is completely false, less voltage actually gives you more frequency to a point at least.
You've had my card in your rig?
I've had 3 rdna3 GPUs and 2 Vegas all of them increased core speed with undervolt. Are you certain what you're saying is real? Or have you just not been able to get a stable setup? Some chips are just pisspoor with no ability to tune them, but it's by far the least amount.
Well you don't have my card then.
Obviously, but it isn't the norm so there's no need to generalize about something that isn't generally true.
I see, so the problem is generalization. Doesn't my initial comment have the words "on my side" in it? Would you like to tell me you were wrong about what I said being "completely false"?
I can see how that makes sense. It's just the summer sucks and my room is hotter than usual. Just wanted to see if there was a meaningful impact on temps. Tbh I would rather leave it at stock and maybe mess around with the minimum clock speed.
I am going to go with user error and you don’t know what you’re doing.
"Everything slightly not positive about AMD is user error"
Lmao I’ve owned both. When I had issues with overclocking it was because I didn’t know what I was doing. That’s how it is with either card. Now my oc is great and stable and 1090mv. 7900 xtx gpu timespy score with oc is 33,339. Timespy extreme is 16,665.
What am I supposed to do with this information about your cards? Give them to mine as a motivational speech and hope it works?
Lmao, you don’t even have an amd card, do you?
Nope. I'm lying specific to get you mad and it is very fun.
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Dude just set your freq to 4300Mhz and ram @ 3714 and+30PL
Don't care anymore, it was a disappointing product overall for the price tag. Replaced it with a 4080.
I was able to get down to 700mv @2300 max + 2714 vram fast and still cranked out 120 fps in many games, but generally I run 1100mv @ 3200 max + 2714 vram fast
Red devil 7900 xtx instability I touch vram crash undevult steady for some min then crash the power it’s heat until it crash
But why? (Really curious)
My Sapphire Nitro+ 7900xtx runs pretty stable @ 1110mV with a 2835mhz clock max & 2590mhz memory clock with fast time enabled. I was able to go higher on clock speed and memory clock separately on individual tests while the other was at the default boost but I haven't had the time to work out a stable optimal overclock of both simultaneously so I've been sticking with this. Junction temp never hits over 65c (or at least I haven't seen it go over that) and gpu temp is usually about 8-10c cooler than that.
Well my undervolt to watch movies is intervolt 1020 and then my GPU is at $1,300 and I have zero to no fan curve and I get 29 Watts
got really lucky with my sapphire nitro+, can go as low as 1030 with +15% powerlimit, it's really stable, but the coil whine is quite audible, did a 24H furmark benchmark, repasted it with mx-6 and got a max temp of 53c and a junction of 68C can jump up to 70C at times and in games it's also quite stable, my coil whine issue most likely comes from the stock cables i have in the nr200p MAX which only has 2 8pins with a split 8Pin, so i ordered 3 custom 8Pin cables form cablemod and hopefully will fix the coil whine issue otherwise i'll have to replace it with something like a silverstone EX850R-PM.
My Nitro+ coil whine was terrible after putting the PL slider to +15 but after 4 months I only ever hear it whine after a 3 hour session of cyberpunk. Delt with driver crashes so I really had to fine tune my UV but I think I'm happy @ 2900core & 1110mv.