by i4dnf » Thu Apr 21, 2011 1:07 pm
That option helps with VSync (The option that reduces horisontal tearing when the card has to send a new frame to the monitor and it has not finished drawing it). With triple buffering VSync can happen at any frequency, thus improving framerates. Without triple buffering, VSync will progresively half the framerate with respect to the desired refresh rate (i.e 30, 15, 7 fps for a 60hz refresh rate), in order to keep frames in sync, basicaly keeping the same image for 2 cycles (or 4, or 8 ), until the GPU catches up.
So it's generaly a good idea to keep it on, if you have VSync on.
Same thing happens if the GPU renders the frames faster than the monitor displays it, thus frames above 60 will get lost.
Last edited by
i4dnf on Thu Apr 21, 2011 2:41 pm, edited 1 time in total.