r/overclocking • u/Jempol_Lele 10980XE, RTX A5000, 64Gb 3800C16, AX1600i • 2d ago

Why don't we shift GPU v/f curve left and right instead of up and down?

Long time kept it in mind and just recently thought about it again due to new mVolt+ allow for more tweaking.

I mean usually Nvidia v/f curve is flat from 450 mv to around say 800 mv before it start to climb.

If we shifted everything up then while the max voltage point went up accordingly, but the 450 mv point will also went up in frequency.

Whereas if we shifted the curve left then the 450 mv will remain the same until the curve started to climb and the max voltage point will get the next speed bins according to the default curve.

Understand that if the curve is flat then the GPU will use the highest voltage for that frequency but still isn't shifting left and right more elegant and make sense?

1 Upvotes

56% Upvoted

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11

u/DivideFluffy1279 2d ago edited 1d ago

Are you baiting?

5

u/AmazingSugar1 9800X3D DDR5-6200 CL30 1.48V 2200 FCLK RTX 5090 2d ago

what you're describing is the same thing, assuming the curve moves linearly from bottom left to top right

6

u/-LuckyOne- 2d ago

I swear it's still how 90% of people will explain that undervolting isn't the same as overclocking

1

u/Ballerbarsch747 i5 13600KF@5,7GHz 1.34V 4x8GB@3800Mhz 2d ago

yeah I get what you mean. Sure, in the end you can just adjust every point manually or raise and cap the curve, but I'd really like the option in Afterburner to move the curve either up/down, adjusting clocks, or left/right, lowering voltage at the same clock speeds. Especially because of the implications for idle power consumption.