Yea, nvidia has always ruled the OpenGL roost, reminds me of the "Doom 3 = nvidia / Half-Life 2 = ATI" days. Although things have changed a bit now a days.
Originally Posted by NosBoost300
very good question?? maybe it is its huge 512bit memory interface and 328stream processors.. not too sure on that one?
Well that might explain current gen hardware but for a while now ATI has been fairly superior in 3Dmark. It's all in the code and engine really, some run more efficiently than others, and while 3Dmark tries to make it unbiased as possible it still runs better on ATI hardware.