I have FOV set to 85 and it appeared that at trees and grass weren't being processed with Anti-aliasing at the edges of the screen.

It seems to differ between Fullscreen mode (pressing F11) and windowed mode (set at 1280x720)

Can't seem to add more attachments so uploaded to imgur. Pay attention to the tree's on the top right. I've took multiple screenshots to show the difference when looking around. http://imgur.com/a/yhGr8