If the FreeSync monitor does not support LFC (low frame rate compensation), then Enhanced Sync will again work with the same algorithm mentioned above to try and minimize tearing and input when possible. Above the maximum refresh rate, where a VRR display would simply revert to a Vsync-like state, Enhanced Sync has the same benefits. It’s also worth noting that Enhanced Sync can work just with FreeSync displays. I don’t have details on how the algorithm works yet and how it decides that it will enter and exit the tearing state, but I am hoping to get more answers when we start doing our own testing of the driver this week. At lower frame rates, it uses a dynamic algorithm minimize both stuttering and input lag when the going gets tough. At high frame rates, it aims to provide a better mix of visual integrity and responsiveness. So Enhanced Sync improves on traditional vsync by combining two techniques. And Enhanced Sync will automatically choose to stop allowing tearing once the game’s frame rate returns to a more comfortable level.

When Enhanced Sync does allow tearing, users should typically only see a single tearing “seam” on the screen at once, since the frame rate is low. When you are under the refresh rate of your monitor, the Enhanced Sync settings goes into another mode that attempts to offer a much smoother gaming experience without tearing but will regress into a state that allows tears if the frame rate drops “far enough below the display’s refresh rate.” From AMD’s paper provided to the media before release:

What is radeon relive and do i need it