Does Disabling Vsync affect performance?

[JoeDredd]

Does Disabling Vsync affect performance?.. ie in games etc. as i have it enabled at the mo.. and was wondering if i could vet more of a performance increase. not that i am worried about current performance.



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[jackzod]

By disabling V-sync, you will gain a few frame per second. ( not much by my own experience, at least on a graphic card with a good tripple-buffer (Nvidia anyone... )
But you'll find that you might get some image glitch once in a while since the monitor is not sync anymore qithe the card, but it's quite minor usually.

[billko]

Yes, framerates will increase very significantly with a fast graphics card (G400, anyone?) (Actually, your monitor has a lot to do with it, too - I was just being silly.)

The reason is, vsynch puts a ceiling on the framerates, so the video card won't display frames faster than your monitor can display them. Remove the speed limit and the video card can display frames as fast as it can. Sometimes this leads to ugly shearing, where the top half of the screen becomes "disconnected" from the bottom half, as if you were splicing two frames together - because you are! It will be most noticeable (and potentially deadly) when the scene changes dramatically, like when you turn around quickly to shoot something, and the screen becomes a garbled mess...

Bill


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People call me a computer god; I remind them that I am merely a minor deity...