Doom 3	Source: id Software

Doom 3 is the most advanced OpenGL game to date, it takes advantage of the latest videocard technology and pushes the processing power of the CPU to its absolute limits. At its highest setting Ultra quality, texture sizes pass the 500MB mark which means even tomorrows videocards will have a hard time running everything. The framerates in the game itself are locked at 60 fps so anything above that point is wasted. Each test is run three times and with the third run being recorded.

Doom 3 - LQ 640x480
Video Card	FPS	Ranking
Albatron Trinity PC5900	60.4
Albatron GeForce 6800GT	78.4
Asus AX800XT/TVD	75.4
Asus AX800XT/TVD (542/580)	79.7

Doom 3 - LQ 1024x768
Video Card	FPS	Ranking
Albatron Trinity PC5900	37.4
Albatron GeForce 6800GT	78.6
Asus AX800XT/TVD	74.7
Asus AX800XT/TVD (542/580)	77.4

Doom 3 - HQ 1024x768
Video Card	FPS	Ranking
Albatron Trinity PC5900	30.7
Albatron GeForce 6800GT	77.7
Asus AX800XT/TVD	72.7
Asus AX800XT/TVD (542/580)	75.6

Doom 3 - HQ 1600x1200
Video Card	FPS	Ranking
Albatron Trinity PC5900	16.4
Albatron GeForce 6800GT	60.4
Asus AX800XT/TVD	50.4
Asus AX800XT/TVD (542/580)	52.8

There are rumors on the web that Doom 3 heavily favors nVIDIA videocards, whether that's true or not I don't know. In these tests the Asus AX800XT/TVD is clearly slower than the Albatron GeForce 6800GT videocard.