Does anybody really know what vsync does or?It was my understanding that vsync:synchronises your display with your graphics card. In short it wil limit the number of frames to the number of frame your display can display in 1 second.so if you have a 85 mhz display you would get 85FPS if you have a 100 hmz you get 100FPS.Most displays have a delay of 8 ms.1000ms / 8ms = 125. Which whould suggest that a modern display would be 125 Mhz, in turn 125FPS.