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 tomorrow's videocards will have a hard time running everything. The frame rates 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.

Doom3
LQ 640x480	FPS	Ranking
MSI RX800XT-VTD256E	113.8
Gigabyte GV-RX80L256V	128.1
PowerColor X700 Pro	103.1
MSI NX6800GT-T2D256E	120.1
Albatron Trinity PC6600	97.6
Albatron Trinity PC6600U	111.4
MSI NX6600GT-TD128 AGP	112.5
Gigabyte GV-3D1 (Single GPU Mode 500/1120)	113.3
Gigabyte GV-3D1 (SLI Mode 500/1120)	108.8
MSI NX6600GT-TD128E (Single)	114.6
MSI NX6600GT-TD128E (SLI Mode)	109
Asus Extreme N6600TOP/TD/128M/A	114.3
Asus Extreme N6600TOP/TD/128M/A (623/1030)	116.3
LQ 1024x768	FPS	Ranking
MSI RX800XT-VTD256E	105.4
Gigabyte GV-RX80L256V	100.8
PowerColor X700 Pro	57.2
MSI NX6800GT-T2D256E	110.6
Albatron Trinity PC6600	55.7
Albatron Trinity PC6600U	74.9
MSI NX6600GT-TD128 AGP	87.4
Gigabyte GV-3D1 (Single GPU Mode 500/1120)	92.6
Gigabyte GV-3D1 (SLI Mode 500/1120)	107.4
MSI NX6600GT-TD128E (Single)	90.8
MSI NX6600GT-TD128E (SLI Mode)	107.3
Asus Extreme N6600TOP/TD/128M/A	78.9
Asus Extreme N6600TOP/TD/128M/A (623/1030)	99
HQ 1024x768	FPS	Ranking
MSI RX800XT-VTD256E	102.8
Gigabyte GV-RX80L256V	97.8
PowerColor X700 Pro	54.3
MSI NX6800GT-T2D256E	107.1
Albatron Trinity PC6600	52.5
Albatron Trinity PC6600U	71.3
MSI NX6600GT-TD128 AGP	84.3
Gigabyte GV-3D1 (Single GPU Mode 500/1120)	90.1
Gigabyte GV-3D1 (SLI Mode 500/1120)	106.8
MSI NX6600GT-TD128E (Single)	87.9
MSI NX6600GT-TD128E (SLI Mode)	106.4
Asus Extreme N6600TOP/TD/128M/A	75.7
Asus Extreme N6600TOP/TD/128M/A (623/1030)	96.1
HQ1600x1200	FPS	Ranking
MSI RX800XT-VTD256E	58.4
Gigabyte GV-RX80L256V	50.1
PowerColor X700 Pro	24.7
MSI NX6800GT-T2D256E	66.9
Albatron Trinity PC6600	26
Albatron Trinity PC6600U	35.9
MSI NX6600GT-TD128 AGP	43.7
Gigabyte GV-3D1 (Single GPU Mode 500/1120)	47.3
Gigabyte GV-3D1 (SLI Mode 500/1120)	79.3
MSI NX6600GT-TD128E (Single)	45.9
MSI NX6600GT-TD128E (SLI Mode)	74.4
Asus Extreme N6600TOP/TD/128M/A	37.9
Asus Extreme N6600TOP/TD/128M/A (623/1030)	52.3

At higher resolutions the Asus Extreme N6600TOP/TD/128M/A really starts to shine when it's overclocked. The card provides perfectly playable framerates even in high quality mode at 1600x1200.