De discussie over videokaarten, DirectX 9 en driver optimalisaties is na het verschijnen van de Half-Life 2 benchmarks in alle heftigheid losgebarsten. Nu is Half-Life 2 niet de enige graadmeter en zou begin volgend jaar die andere grote FPS moeten uitkomen. Daarom mailde BonusWeb John Carmack en vroeg hem of de performance van de GeForce FX ook in Doom 3 zo teleurstellend was:Hi John,

No doubt you heard about GeForce FX fiasco in Half-Life 2. In your opinion, are these results representative for future DX9 games (including Doom III) or is it just a special case of HL2 code preferring ATI features, as NVIDIA suggests?

Unfortunately, it will probably be representative of most DX9 games. Doom has a custom back end that uses the lower precisions on the GF-FX, but when you run it with standard fragment programs just like ATI, it is a lot slower. The precision doesn't really matter to Doom, but that won't be a reasonable option in future games designed around DX9 level hardware as a minimum spec. John Carmack In ander Doom 3 nieuws geeft Tim Willits in dit interview wat meer informatie over de sfeer, gameplay en eindbazen die je tegen zal komen in Doom 3.