Today I undervolted my brother’s amd rx 6950xt by 120mv ( at 125mv a game we tested would crash at 100% usage and max power draw ).
Also made his fan curve more agressive cause by default it never wen’t over 55% fan speed which is just stupid.
This in total lowered his temps across in mist games from average 80C to 55-60C and lowered power draw on average by 20W.
It also allowed him to play supraland at max settings with gpu not going over 70C instead of lowest setting 80C on average.
So yeah, if you never tried or bothered with undervolting try it and post your results. Or if you did it before post your story and results.
I followed a random guide I found on the internet for amd.
In amd case you can do it from their driver by going to performance tab and choosing tuning.
There you will find gpu setting, set them to manual and from there you can start changing fan speed and voltage. Voltage you change by 50mv first time and if stable by 25. When you come to a point where your game/program crashes you use the value from before that didn’t crash the game and that’s it.
As for nvidia I don’t know because I don’t own one and don’t have the money to own one ( they are 1k euro on average here for 4070 and 2.5k for 4090 on average ) only thing I know is that you will need msi afterburner.