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This was said by Carmack himself:
Geesh, you'd think if ATI could only write drivers, they could have the best preforming card in these next generation games, too bad it'll never happen...
This was said by Carmack himself:
Based on the feature set, the Radeon 8500 should be a faster card for Doom than the GF4, because it can do the seven texture accesses that I need in a single pass, while it takes two or three passes (depending on details) on the GF4. However, in practice, the GF4 consistently runs faster due to a highly efficient implementation. For programmers, the 8500 has a much nicer fragment path than the GF4, with more general features and increased precision, but the driver quality is still quite a ways from Nvidia's, so I would be a little hesitant to use it as a primary research platform.
Geesh, you'd think if ATI could only write drivers, they could have the best preforming card in these next generation games, too bad it'll never happen...