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Vsync and Artifacts?

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  • 21-01-2006 7:26pm
    #1
    youcancallmeal
    Registered Users Posts: 8,020 ✭✭✭


    Whats all this then? I've got a 7800gt and playing games such as BF2, COD2 and other assorted games. Have noticed any problems when playing these games but I keep hearing these terms such as Vsync and Artifacts.
    Anyone able to explain what these terms actually mean, i.e. should I turn vsync on or off?


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    #2
    KdjaCL
    Closed Accounts Posts: 20,346 ✭✭✭✭KdjaCL


    Artefacts are "marks" on the screen caused by an overheating Gpu or a bad driver/software. Usually lowering clockspeed or changing driver fixes them. But thay can be unfixable and kill yourr Gpu.

    Vertical synchronization (abbreviated as vertical sync or V-sync) is a method used in computer games to only allow the game to draw to the screen starting at the beginning of a video scan. This limits the frame rate of the game to the monitor's refresh frequency and also prevents page tearing.

    V-sync is often found in applications where frames forming a motion sequence are rendered in real time at a variable rate, including 2D/3D games and audio/data visualizations, but does not apply to video playback (as video has a fixed frame rate).

    http://en.wikipedia.org/wiki/Vertical_synchronization

    A lot of games have issues with vsync so best left off, also Drivers have issues with it. Try it and see what you think yourself.

    kdjac


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    #3
    youcancallmeal
    Registered Users Posts: 8,020 ✭✭✭youcancallmeal


    Cheers for the answer kdjac ;)
    Sometimes in BF2 I can see a lot of white specks in the distance which appear out place. This has only been happening since I overclocked my 7800, would this be known as artifacts?

    Also is there actually any visual improvement with using vsync?


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    #4
    K.O.Kiki
    Registered Users Posts: 18,707 ✭✭✭✭K.O.Kiki


    Al, if you're seeing artifacts it's a sure sign you've gone too far!:eek:
    Turn the clockspeeds on your card down ASAP (I'd suggest 470/1050-ish). Then, you can start OC'ing again in tiny increments -- are you using any programs for testing? (Wait until more hardcore OC'ers reply, maybe)

    As for V-sync, IIRC its main use is for maintaining constant framerates, not improving visuals.


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