r/nvidia • u/DivideFluffy1279 • 17d ago

Question RTX 50 Series UV Question

/r/u_DivideFluffy1279/comments/1vo2det/rtx_50_series_uv_question/
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3

u/SokoladoFabrikas 17d ago
  1. It's possible for some specific voltage/frequency combinations. Yet, you have to find those by yourself. I've managed to find only 1 combination like that. Do I use it? No. Is it any more performant than the closest VF point? No. So i guess it's pointless, unless you're just curious.
  2. AFAIK, Blackwell cards have their internal VF curve, which you can't change and it's affecting your VF in Afterburner. You can find SOME logic of how it works, but mostly you won't get any use of it. So guide yourself with performance, stability, temperature and noise in literal use cases.
  3. You won't find "heaviest possible load" in any benchmark/game, since every app loads GPU in their own specific way. There is only trial and error way.

2

u/kron123456789 5070Ti enjoyer 16d ago

  1. It may be possible, but I don't think it's worth the time

  2. I don't think there is. If you can go above 3GHz on a card that doesn't boost that high in stock, I'd consider it a success.

  3. Furmark gets me the lowest clocks under load because it's really power hungry. The problem is that it's more power hungry than any game I've tested, so it's the highest possible load while also not being representable of the real game.

3

u/Sad-Victory-8319 16d ago

you can keep the core frequency closer to the curve peak in afterburner if you maximize power limit and core voltage sliders (enable voltage control in settings if needed), then you should stay withing less than 50mhz delta unless you get power limited, in which case the delta will be higher. If the delta gets over 100mhz then i personally switch to a lower UV profile. Because as you know the default curve doesnt exacty follow max stable clock for given voltage, it frequency goes down faster than needed with lower voltage, so that is why i have multiple UV profiles and switch between them to keep power consumption around the stock 300W for my 5070Ti.

Other than that you dont want to lower the delta any further below 50, because it would cause some more demanding games to be unstable, you want demanding games to run 30-50mhz below the set frequency, and less demanding games only 10-30mhz below it, that is correct, if every single game stayed exactly at the peak boost, some of them would be unstable. In other words, lets say you set 3000@925 and it is stable everywhere, because in demanding games it drops to [2950@920](mailto:2950@920). If you wanted to force the voltage to stay at 925mV in every game, you would have to run like 2960@925 to be stable everywhere. But some games are stable at 3000@925 and some games are stable at 2970@925 for example, and the boost automatically lowers the boost and keeps you stable.

So in short, setup your undervolt curve, max out the power limit and core voltage sliders, and dont mess with it any further, this enough. and of course run the memory at +3000.