De mensen van GameSpy spraken op het game-event E3 met gamedeveloper annex -guru John Carmack van id Software, de man ook achter de technologie van de DOOM engine. Op E3 werd DOOM III blijkbaar gedemonstreerd op een volgende generatie videokaart van ATi. Volgens ShackNews had de demo er zelfs nog beter uit kunnen zien, omdat door probleempjes de kaart niet op high-quality maar op medium-quality werd ingesteld. ShackNews verwijst ook meteen even naar een audio-interview van Wired met Carmack, wat we natuurlijk niet onvermeld willen laten. Aan GameSpy geeft Carmack ondermeer zijn mening over de huidig verkrijgbare videokaarten en beperkt zich daartoe, omdat NDA's verhinderen over komende kaarten te spreken. Kort door de bocht samengevat zegt hij dat ATi kaarten potentieel fraaiere mogelijkheden hebben, maar dat in de praktijk de nVidia tegenhangers meestal beter uit de bus komen door de efficiëntere drivers:
Carmack: There are interesting things to be said about the upcoming cards, but NDAs will force me to just discuss the available cards. In order from best to worst for Doom: I still think that overall, the GeForce 4 Ti is the best card you can buy. It has high speed and excellent driver quality. 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. The GF4-MX is a very fast card for existing games, but it is less well suited to Doom, due to the lower texture unit count and the lack of vertex shaders. On a slow CPU with all features enabled, the GF3 will be faster than the GF4-MX, because it offloads some work. On systems with CPU power to burn, the GF4 may still be faster. The 128 bit DDR GF2 systems will be faster than the Radeon-7500 systems, again due to low level implementation details overshadowing the extra texture unit. The slowest cards will be the 64 bit and SDR ram GF and Radeon cards, which will really not be fast enough to play the game properly unless you run at 320x240 or so.