When I look at overall GPU power, I look at high res and eye candy. So I put the 8800U above a 9800GTX and 8800GTX above an 8800GTX 512MB. But this is because of high res with fsaa performance. At a lower res, then these cards bunch up pretty close and the G92 GTS is not far from an 8800U. In Crysis for example, at playable res there may be only 2-3 fps difference form GTS G92 to 8800U, with the dual GPU GX2 being way ahead though. Crank it to 16x10 high details with fsaa, the 8800U may pull ahead of the G92's more % wise, but it will be unplayable settings averaging 20fps or less.