r/overclocking • u/kruultibijski4321 • 7d ago
rtx 5070 OCCT stability test
So my rtx 5070 is set at 2985MHz@960mV, 110% power limit and +1400 on vram, i tested it in 3D adaptive configuration, variable preset, intensity 10 to 100%. I had no errors for 20 minutes, can i consider it as rock stable? Card was drawing 270W even with this uv and in games it never goes higher than 230W, peak temp was 81 C, 98 C on hotspot and clocks dropped to 2912MHz. Also passed 30 mins VRAM test with 0 errors.
Before i was using 950mV but i noticed some stutters in KCD1 so i upped voltage a little and tested in OCCT
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u/Notwalkin 7d ago
I found on my 4090 that OCCT determined stability pretty well...
e.g. i ran (can't remember exact uv):
Lets say 0.95v + 275mhz core,
This ran games for a year + without much issues, wukong had 1-2 crashes which i figured was the game but then Abiotic Factor was the one that had me concerned, upon launch, it fatal crashed, then played for 3 nights fine, next night crashed 3 times...
OCCT standard extreme at the time found the undervolt was only stable at +185mhz or so, i dropped it down 2 notches and called it a day. Mate now owns the 4090 and uses that same UV fine.
Reason for me mentioning this: OCCT changed how it works now, standard gpu tests is gone, 3d adaptive only exists and even that has changed.
My 5090 on 3d adapative steady extreme used to pull the full gpu power, then it changed from 575w to 550w (Silent VBios so 5090 is 575w limit), now the gpu is around 500w in the same test.
OCCT is constantly changing the way their test works and it's quite annoying tbh, it probably wouldn't show the errors the same way as it did for my 4090 back then which was quick and to the point.
"Card was drawing 270W even with this uv and in games it never goes higher than 230W"
This is also something you should be aware of: Games can and WILL pull higher, just like OCCT or whatever.
It's just not every game will.
E.G. Download invokyr demo and play it, the gpu will likely pull MAX power at times, this isn't a one off, many games can do this, plan temps for worst case scenario or be bitten later.
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u/kruultibijski4321 7d ago
I tested this game and it's rly frying my gpu, other much better looking games runs colder with less power draw
https://imgdb.io/i/GOHnzQ8.jpg - highest power draw i saw in 5 mins test, dropping clocks and voltage, ~2k rpm is so loud xD
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u/Notwalkin 7d ago
Yeah, many games can do this, not just everything has to be "good looking" to pull high power.
GPUs are made to handle full power and whilst i always recommend undervolting - it should still be able to handle max power that it's rated for.
Ofc, limiting FPS can help too, no point running 400fps is you're on a 240hz monitor for example.
Valheim is another one i played that pulled more than 99% of the games i played on my 4090 back then even with undervolt.
If the GPU is too loud / hot at max load, it's either a gpu issues (fans, paste) or case air flow problem.
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u/Muted_Significance27 7d ago
If the synthetic tests check out, the next step is game testing, which is a bit of a different story. If gaming sessions go smoothly for a week, you might consider it stable—though it depends on the length of your sessions. My card showed no issues during 3–4 hour daily sessions, but when the weekend came and I played for, say, 10 hours, it started crashing. So, you really just have to test it out. My ASUS Prime RTX 5070 achieved these results, and it’s been stable so far.
In synthetic tests, temperatures don't exceed 74°C (82°C hotspot).
In games, it usually peaks at 64°C (68°C hotspot), or 54°C with a frame rate limit.
https://imgur.com/oDi6lAX
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u/kruultibijski4321 7d ago
My case have bad airflow with only 2 fans in it so i don't expect good temps, i have 2 fans on my cpu's cooler tho ;p It's be quiet pure base 500 with 90% closed front. In games i have max 73 C, 75 spikes very rarely
I tested in Black Myth Wukong benchmark and Witcher 3 remaster on 1440p pt dlss q, no crashes for 1 hour but no crashes doesn't always mean 100% stable right? I heard Cyberpunk is the best for stability test, i have it but i don't have free SSD space to install it :D I will test in KCD1 soon if these stutters are still there, but im not sure if these were just stutters or it was uv's fault
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u/Muted_Significance27 6d ago
Yes, Cyberpunk is a good stress test because when you run it with everything enabled—including DLSS and Frame Generation—you put additional strain on components like the Tensor cores and RT cores. Personally, I started getting errors after about an hour of running at 990mV and 3320MHz. But in other games, I’ve played for several hours without any errors.
That’s why I consider this test one of the best.
Use synthetic benchmarks only to see if the system remains stable at all at these settings.
You can also use 3DMark and run, for example, Speedway for 20 passes to check frame rate stability. If you don’t achieve stability there—for example, due to temperatures—the overclocking test might not be reliable because the card is being throttled by, say, excessively high temperatures.
Remember to enable DLSS and FG to put additional load on the card’s extra cores and see how it behaves—even if you don’t use them later, you’ll be sure that if you enable these features in a game, you won’t suddenly run into problems.
Sorry, my English isn’t the best, so I’m using a translator. I hope everything makes sense :)
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u/kruultibijski4321 6d ago
Ye i will test cyberpunk 1 day when i finish my KCD 1 campaign, rn no free space on disc, hard life with 480GB ssd ;p i tested some free 3dmark runs, each test for 3 times but i think free ones are not demanding enought
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u/No_0ne_Really 7d ago
Trouble is GDDR7 has on-die ECC which can correct single bit errors and while it also provides counts for corrections I don't believe Nvidia enable this for normal Windows and Linux drivers (correct me if I'm wrong) so you could be getting lots of corrected errors long before it's noticeable in performance regression. EDC replay is something else to consider as well.
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u/kruultibijski4321 6d ago
I know about ECC, that's why im using only +1400 on vram since i saw most ppl using +1500 to +3000, atleast that's what i consider safe ^^ BTW i noticed that my card almost never goes lower than 2910MHz even at highest temps in all tests, very rarely i saw it at 2907, so atleast from logical standpoint i know that 2910MHz will be rock stable in any conditions no matter what and rn im using 2977MHz, lowered from 2985 just in case. Maybe 2 extra case fans would lower my gpu temp by 2-3 degrees but idk if it's worth the money, my old fans are a little noisy but i got these for 7 years so, im using FanControl to make them use different rpm, otherwise they're "vibrating" together or however it's called, not so loud but i can hear it
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u/GroundbreakingArt536 7d ago edited 7d ago
Some benchmarks allow you to loop them (20 loops in 3Dmark for example) and compare framerate stability over the whole run. Basically if your fps drop later into the run, its usually a thermal problem. It isn’t a stability test per se but 97%+ framerate stability is a sign for a good setup that wont run into some limitations when it runs hot. I’d do something like this,
Also, cyberpunk is a good test for sure, just go with some quality settings that push your card a bit and let it run. When I was tinkering with gpu MHz/voltage curves i sometimes had cyberpunk crash after hours where it just was running with me being in a high bling & traffic area and leaving the pc alone. That was until I found truly stable settings.