Specs:
-Intel i7 2600k @ 4.6 Ghz
-ASROCK Extreme 3 Gen 3
-8GB DDR3@1333MHz
-Sapphire 6950 1GB GDDR5 @Core:900MHz/Memory:1350MHz
-WD 1TB , Samsung 1TB , Seagate 2TB , WD 500gb
-Win7 Ultimate x64
-Vantec Ion+2 600w

Resolution: 1920x1080
Texture: Ultra
Shadow: Ultra
Effects: Ultra
Mesh: Ultra
Terrain: Ultra
Terrain Decor: Ultra
Antialiasing Deffered: OFF
Antialiasing Post: High
Motion Blur: ON
Anisotropic: 16x
Ambient Occlusion: HBAO

FPS min 39 - 69 Max

with occasional stuttering .