I am using the 12.90 Detonators and I wouldn't part w/them for anything. I have seen speed increases and I get more vibrant colors (like I did w/12.40 Detonators) because of them. I have a GEForce 2 GTS video card. Plus they work well w/DX 8.1 which I am also using. Beta build 670. I would reccommend them to anyone.