With double-buffering (and vsync enabled), the game must wait until the next vertical retrace before it can start rendering the next frame. Vertical retraces occur at the vertical refresh rate, typically in the 60–100 Hz range. Turning off vsync (if supported by the graphics controller) eliminates this delay and provides the highest framerate, but it can cause a visual artifact called "tearing."
With triple buffering enabled, the game renders a frame in one back buffer, and while it is waiting to be flipped, it can start rendering in the other back buffer. The result is that the frame rate is typically higher than double-buffering (and vsync enabled) without any tearing.
Triple buffering can be turned on in the graphics or video options of many games. There are no driver settings to change in order to enable this feature.
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