Anyone having stuttering, or more correctly, frame pacing issues...make sure you have disabled Full Screen Optimizations on the DX11 executable. If you have, MAKE SURE IT'S STILL DISABLED. I've had Windows updates re enable it <.<
Granted I'm only at 60Hz and capped at 60fps with the in game settings, but with optimizations off it's as smooth as glass, and no unusual latency.