OK, so maybe 80 points to you is not within the margin of error (which at between 1-2% difference definitely is). What is so shocking about it then? Damn, its lower by 80 points in 3Dmark?! Are you going to commit suicide then?
My point is the difference is so insignificant, its not even worth the trouble to THINK about it. Why don't you go ahead and PLAY something with it? But maybe if you do, then you'll come back and split hairs again, like 'the Omega drivers did 80 fps in this game while the Catalyst drivers did 82fps. Why is it faster with the Catalyst?'