Originally posted by: Avalon
Originally posted by: zakee00
Originally posted by: sman83
ok what about 128bit vs 256bit big performance difference?
diffenately. look at the 6600 vs the 6600gt.
Wrong cards there Zakee. Same core, both 128bit

256bit memory allows for more bandwidth, meaning you can sustain higher performance at higher resolutions and eye candy. A good comparison is the 6600GT and the 6800NU. The first is a 128bit card, and the second is a 256bit card. They both perform similarly at lower resolutions, but once you start upping things, the 6800 pulls away due to having more memory bandwidth.
Big difference? It depends on what cards you are looking at.