Nvidia has some hold, Money, Advertising(claiming games liuke Ut2k4 run better when thye don't), slightly better opengl and old engine peromance, worse drivers, and lower default driver settings. (and worse performance when settings turned up)

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P4 Northwood 2.8Ghz 800Mhz FSB, i875P, 1.5gb DDR400, Radeon 9800(R350)
Aquamark3 Score: 47,825
Steam, Xfire: Sepht
You need at least 1 server (you know, the black ones) -Cowgoboom
Sepht do you take pride in making others Feel... How should i say this... Retarded? -Silent Archer