Quote:
Originally Posted by Igo kyu
Vsync will stop your card sending another frame while a previous frame is being drawn onto the monitor. That will cap the output of the card it at whatever the framerate of the monitor is, but if the monitor is capable of 60Hz and the card is managing only 59Hz, it will drop the framerate to 30Hz, and if it's only managing 29Hz, it will drop it to (I guess) 15Hz (or should that be 20Hz?).
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This is correct.
If your card is capable of rendering the game to 30fps only then ofcoarse you dont need to use Vertical sync!