How to undervolting AMD Graphic Card

Step 1: Open AMD Radeon Adrenaline Software. Proceed to Performance -> Tuning.


Step 2: Scroll down until you see GPU. Click on “Custom” at the rightmost side.


Step 3: Agree with terms and conditions. And enable Advanced Control for GPU Tuning , Fan Tuning and VRAM Tuning.
Also Under VRAM Tuning for Memory timing, select Fast Timing.



Step 4: Under GPU Tuning: Change the Voltage slider so that the new value is 50mV less than the existing value. Example in following screenshot, if it’s 1175, set it to 1125mV. You can manually type that as well in the field if slider is not much helping.



Step 5: Under FAN Tuning (On right side): Click on Fine Tuning Controls to expand the panel.
And put in the following values as shown in the screenshot.


Step 6: Click on Apply Changes on Top Right corner.



Step 7: Export this profile and save it somewhere for in case, game driver crash or drivers are updated,
you can restore the configuration without repeating all these steps.



Now try play some video games and test the stability. If it doesn’t crash, and you feel a little more confident, repeat Step 4.
but this time, reduce by 25mV only. Repeat 6. until you observe instability in the games you play.
If a game crashes, increase it back to +25 mV from the value at which the game crashed.


Credit : https://mostwanted002.gitlab.io/post/amd-gpu-undervolting-and-fan-curve-optimization/