I wonder how much of an upgrade this will be over my xfx 6950 1gb... I also wish these had come in stock before BF3 beta ended. Also does anyone have any instructions on whether I need to uninstall my current amd video card drivers, as well as if sapphire has released a bios update yet? to fix the 20% issue? Also should I boot up first without switching the bios switch, or should I just boot up, install drivers, shut down, flip bios switch then check if shaders are unlocked?