This all came about when I put the 2nd HD 6850 in my rig this week and I saw it underperforming until I disabled the ULPS in Windows registry. I was only scoring like P5400 with the 2nd card. Since I was scoring P4500+ on just one card, I knew something was wrong. Once I got my crossfire/clocking issue resolved, I wanted to compare some scores. I stumbled across the GTX 590 and HD 6990 scores and I lol'd.
Yes, these are 11.4 beta drivers, and the HD 6990 is using the same drivers if you look closely at the scores.
I'll post my single card scores from a few months ago with the old drivers, as it makes sense, since it's about half the score.