So spent about an hour with Crimson and these were my initial impressions: Valley benchmark scores about 3% higher on average vs. the most recent beta drivers. Seems to have changed some sort of lighting/HDR effect for me as Valley shows brighter and darker areas now. New control panel loads quick and has a clean look. Games seemed to load a little quicker than before. Overall, thus far, i'm happy with the update. This is with my 8GB 290X on a Xeon setup.