I put in a second Radeon HD 6970 same exact cards as the one I already owned. I was getting around 130-200 fps with the single card in both the games that I play. When I installed the second card and started running them in crossfire my praphics performace dropped majorly. I am running an Intel Core i7 3820 3.6 ghz processor on an DX79TO mobo. With 16 gigs of corsair vengeance ram. Along with a 520 series SSD. I have no idea why my performance dropped. I was getting 150-200 fps on max setting but in the same area after crossfire I was getting like 50 fps at most. I read that when I installed the new card that windows downloaded its version of the amd drivers but they are usually not the best ones so I need to uninstall the drivers and reinstall the ones from the AMD site. Please help