GPU Underclocking damage.

[someone you dont know]

I recently underclocked my gpu in order to stop the witcher 3 from crashing which i looked up and it was helping alot of people so i tried it and decreased my core clock 30mhz and it successfully stopped crashing but ive noticed ever since i underclocked i have worst performance by a couple frames in games even when i put the clock speed back to normal its really noticeable in games i was running in about the 30's previously because there now in the 20's. I have a gtx 680 galaxy 4gb edition

 

[Ethanh100]

seems that you got your clock stuck at 30mhz, this is pretty common with nvidia control panel not thinking the card needs to speed up when it really does. take a look at your speeds using something like gpuz to see if this is the case. to fix this, open up nvidia control panel, under 3d settings go to manage 3d settings and where it says power management mode put that to high performance and save and restart. This will make the minimum clock for the card your base clock, so idle you will be at 1100mhz or whatever and it wont drop to say 135mhz. you can try putting this back to adaptive later to save power and less heat and see if it cooperates then.