Originally posted by: ElFenix
Originally posted by: amenx
I think the 128bit vs 256bit mem issue no longer holds much relevance in todays cards, esp vs last gen cards. Remember the FX5900? It was 256bit yet got convincingly trounced by the 6600gt 128 bit which also does better than the 256bit 9800 pro.
the memory width is just half of the bandwidth calculation, mhz is the other. the 6600GT is down about 1/4 in bandwidth to the 9800 pro, but can handle 1/3 more shader ops and has about 1/3 more texel fill rate.
the FX5900 was trounced in shader ops and single texturing fillrate vs the 9800 pro, even though it had about 1/4 more memory bandwidth.
in short, your comparisons aren't really all that even. bus width still matters, and always will. there is a reason 64 bit bus width cards blow.