On Wednesday I was playing games perfectly fine at a solid 60 Fps with my Radeon Hd 6770 card. However on friday when I opened up my games my frame rate was very low and not steady at all. I have no idea what the problem is; my drivers are fully updated and I hadn't done much with my computer between when it worked fine and now when it doesn't.
I tried cleaning the inside of my computer with compressed air, but nothing happened.
Graphics card: Radeon Hd 6770
Power Supply: Coolmax Silent Fan Power supply 450W