I've had a 7950 for about a year now, and I'm so disappointed with my purchase. Stutter issues plague every single game I try to play, and I must have tried everything to fix the issue. Vsync sorts the microstutter out, but the main problem I have is that there seems to be a severe vsync bug with the card... In every game that I enable vsync I can literally run around in circles for 30 seconds with ultra smooth FPS, but then it will start 'skipping' for 10 seconds before returning back to smooth fps again. The problem also appears in Diablo 3 and FFXIV when vsync ISN'T enabled, which leads these games to be unplayable for me.
I have tried so many things - including formatting the PC. I have tried every combination of d3dOverrider setting / radeonPro setting / using stock overclock settings for gpu + cpu / disabling desktop composition in windows 7 (which introduces massive tearing issues) and none of it works. I already have powerplay disabled on the card because of amd's horrendous implementation with GPU accelleration that locks clocks low, so my clocks are constantly at max (so the 'tahiti downclock upclock syndrome' isn't an issue here). The processor I have is an i5 2500k @ 4.4ghz.
FRAFS graph for reference:
Vsync off: http://i.imgur.com/UeFqYlO.png (Time) http://i.imgur.com/eiePVEJ.png (FPS)
Vsync on: http://i.imgur.com/2tTyHHb.png (Time) http://i.imgur.com/GanIY6r.png (FPS)
During the recording of the no vsync benchmark the FPS was going from stuttery to smooth, but afterburner was reporting ~120fps. The frame latency is low, but the fps graph seems to be constantly jumping between 160 and 140fps, so I'm not sure if that's part of the issue.
If I can get vsync working properly I will be happy, since it eliminates most of the microstutter issue. But even with vsync on games are still stuttering every 30 seconds or so. I just can't stand it any more...nothing is going on to suggest why this is happening.
I have tried so many things - including formatting the PC. I have tried every combination of d3dOverrider setting / radeonPro setting / using stock overclock settings for gpu + cpu / disabling desktop composition in windows 7 (which introduces massive tearing issues) and none of it works. I already have powerplay disabled on the card because of amd's horrendous implementation with GPU accelleration that locks clocks low, so my clocks are constantly at max (so the 'tahiti downclock upclock syndrome' isn't an issue here). The processor I have is an i5 2500k @ 4.4ghz.
FRAFS graph for reference:
Vsync off: http://i.imgur.com/UeFqYlO.png (Time) http://i.imgur.com/eiePVEJ.png (FPS)
Vsync on: http://i.imgur.com/2tTyHHb.png (Time) http://i.imgur.com/GanIY6r.png (FPS)
During the recording of the no vsync benchmark the FPS was going from stuttery to smooth, but afterburner was reporting ~120fps. The frame latency is low, but the fps graph seems to be constantly jumping between 160 and 140fps, so I'm not sure if that's part of the issue.
If I can get vsync working properly I will be happy, since it eliminates most of the microstutter issue. But even with vsync on games are still stuttering every 30 seconds or so. I just can't stand it any more...nothing is going on to suggest why this is happening.
