I just enabled DSR at 1.20x to test it for FPS loss. 1-2 FPS here and there, other wise, combined with native AA in the game. WoW!
It makes the terrain, trees, bushes, plants look more 3D real. When I zoomed in on canyon or water cut features, it is visually obvious DSR is attempting to strongly make the large planar meet lines of craggy rocky faces blended over rather than sharp edges. And the transitions at distance for trees and vegetation to become just visible are smoother and more believable. It also removes the slight fuzziness from the game's native AA.
I was worried DSR would suck the life out of my FPS.
Is there a chance DSR enabled will cause false positives in reporting visual issues with the beta?