Quote:
Adaptive vsync turns vsync on if your framerate gets above your monitor's refresh rate. Below the refresh rate, vsync is off so you will get tearing when your fps drop below the refresh rate. What adaptive vsync avoids is your framerate suddenly dropping to 1/2 the refresh rate once the fps dips below the refresh rate (e.g. dropping to 30 fps if your framerate dips below 60 Hz refresh rate - syncing to every other refresh. etc) when standard vsync is enabled.
So with adaptive vsync, where tearing is most noticed - above the refresh rate - vsync is on and so you won;t see tearing, and where it is least noticeable, vsync is off for maximal fps and responsiveness. It can really only help when your framerate spans across the refresh rate since if it were always below the refresh rate, you could turn vsync off and always above, vsync on.
Edited by GeneO - 11/11/12 at 7:25pm





