I undervolt with my "effective clock" method. First, overclock the 4090 as high as it can be stable and use hwinfo to see what the effective clock frequency is. Mine would overclock to a little over 3ghz but the effective clock in hwinfo never went over 2850mhz. So using afterburner voltage/frequency curve I set it to 2850mhz and found the lowest voltage that was stable. In my case that was 2850mhz@995mv. My power usage is much lower while losing very little performance. Try it out and see what you think. I'm not saying it's definitely the best way, I'm saying I haven't seen anyone else doing it like that and it might be very good when compared and tested by several different people in independent tests. I'm willing to be proven wrong. Edit: I'm using 400 watts when yours uses 300 watts so the way I'm doing it the power usage is somewhere between stock and your method. Let me think about this.
For me limiting the power limits the performance drastically. Changing the clocks does absolutely nothing without adding power.
Thanks❤😊
I undervolt with my "effective clock" method. First, overclock the 4090 as high as it can be stable and use hwinfo to see what the effective clock frequency is. Mine would overclock to a little over 3ghz but the effective clock in hwinfo never went over 2850mhz. So using afterburner voltage/frequency curve I set it to 2850mhz and found the lowest voltage that was stable. In my case that was 2850mhz@995mv. My power usage is much lower while losing very little performance. Try it out and see what you think. I'm not saying it's definitely the best way, I'm saying I haven't seen anyone else doing it like that and it might be very good when compared and tested by several different people in independent tests. I'm willing to be proven wrong.
Edit: I'm using 400 watts when yours uses 300 watts so the way I'm doing it the power usage is somewhere between stock and your method. Let me think about this.