I play with A/A off (its half fps increase over FXAA but FXAA blurs so i dont much care for it) and VSYCH to OFF.

Settings are on high.

Rig is 2500k @ 4k + gtx670 on Win8.

I get good fps and then again i get a sudden GPU usage to 50%. Just by staring a wall... Thats not normal!


These are from the single player experience.