I run 690SLI, 1920x1080 144hz, while I have set the in game quality to normal and on 1920x1080 resolution it randomly/slowly drops to a lower preset graphic setting . So while I can see crisp graphics on my preset, it slowly makes it blurry/less quality over the course of my session.
This happens to me over a length of time, and keeps on repeating as I am playing.