Since I just recently got the XFX 6950, dated just in Dec. 2011, I'm almost sure there is not BIOS switch to enable the 6970 mode. Although, I haven't even checked to find out if it does. I just kind of assume that this was "fixed" since the earlier versions were found to have it and then read that it was disabled on more recent models. At any rate, I'm glad to know it's performing well compared to others. Your clock speeds are showing 3D speeds....whereas mine are showing IDLE speeds. What's up with that?