Since yesterday I have noticed a significant decrease in the gaming performance of my 5770. In Starcraft II, I usually can play the game on ultra settings and I hit 60 fps on the menus and close to 50 fps in game. In WoW, I had nearly 60 fps on ultra consistently.
Yesterday WoW was patched, and the game got new zones and textures. I now get close to 20 fps on ultra in a crowded area and 50 fps in a non-crowded zone. I figured the change might be because of the increased graphics requirements, however I seem to get horrible choppiness everywhere, even when the game says I'm getting 50 fps.
I figured these problems were just exclusive to WoW. However, I opened Starcraft, and I had 30 fps on the menus and 20 fps in game with terrible and constant choppiness.
I don't understand what might have happened. I changed nothing related to graphics and it worked fine one day and terribly the next. I updated my graphics drivers, and there was no change. I uninstalled and reinstalled the drivers and still no change. AMD Overdrive shows the card running at its clocked speed.
This system was built maybe 2 weeks ago. Here are the specs:
AMD Phenom II x4 965
Sapphire Radeon HD 5770
Corsair 4gb DDR3 1333
Corsair 550w PSU