So recently my friend was having trouble with his EVGA graphics card underperforming. While he was trying to get a replacement part, they had him test his GPU in another PC. So I took my MSI graphics card out and put his in. He then installed the drivers for his graphics card. Right after this, we put my graphics card in his computer to see how it would handle. After the testing was done and we put the graphics cards back to the right places, I tried to play R6, but was getting very low frames from what I was getting before. So I uninstalled all the Graphics drivers on my PC, and reinstalled mine (I suspected his driver was messing with it). For the most part, this somewhat worked, but I still feel as though my frames are lower on games than they used to be. On Bo4 Blackout, I dropped to about 50-30 frames. And I believe I was in the hundreds. My other games feel a bit lower than they used to but I'm not positive. I suspect when putting my GPU in his PC it got damaged because it started getting coil whine or some other reason (which never happened in mine, but happened to his GPU when it was in his PC). I'm basically curious if this sounds like my GPU is damaged, or something else is causing it to underperform. Or if everything is working ok and the new BO4 update slowed down the game. Also, what is a good diagnostic test site? Specs: MSI Geforce 1070 8gb VRAM intel i7 8700K 16gb DDR4 ram Frames about 80 - 100 on PUBG 30 - 50 (sometimes hits 70) on Bo4 blackout and about 60 on multiplayer 75 frames on Fallout 4 (although the refresh rate is locked at 60, still feel like this is low I apologize for the long paragraph is I don't know where the problem lies, thank you!