I think it would be close with the 128mb GT's, but I suggest getting the 7800GT regardless. He could always buy a second later down the road to up his performance.
Originally Posted by crashovride02
Would 2 128Mb GeForce 6800's in SLI run better than 1 256Mb 7800GT? I am building a system for a friend and was wondering which would be better right out of the box?