Comanche 4	Source: Novalogic

The Comanche 4 benchmark demo is a unique test as it represents a real-world gaming experience. It contains the single player "Eagle's Talon" mission from the game as well as a detailed cinematic. This DirectX 8.1 benchmark demo will measure your system's performance in the standard frames per second format. The benchmark was run with audio disabled.

Comanche 4
640x480	FPS	Ranking
ASRock K8 Combo-Z/ASR (Ali M1689 200/400)	78.26
Soltek SL-K8TPro-939 (K8T800 Pro 200/400)	79.88
MSI K8T Neo2-FIR (K8T800 Pro 200/400)	79.6
MSI K8N Neo2 Platinum (NF3 Ultra 200/400)	78.96
Epox 9NDA3+ (NF3 Ultra 200/400)	79.51
Gigabyte GA-K8NXP-9 (NF4 Ultra 200/400)	80.54
Gigabyte GA-K8NXP-SLI (NF4 SLI 200/400 X800 XT)	79.87
Gigabyte GA-K8NXP-SLI (NF4 SLI 200/400 6600GT SLI)	78.77
MSI K8N Neo4 Platinum/SLI (NF4 SLI 200/400 X800 XT)	81.83
MSI K8N Neo4 Platinum/SLI (NF4 SLI 200/400 6600GT SLI)	81.24
Albatron K8X890 Pro II (K8T890 200/400)	80.38
Soltek SL-K890Pro-939 (K8T890 200/400)	80.71
Gigabyte GA-K8N Ultra-SLI (NF4 SLI 200/400 X800 XT)	79.74
Gigabyte GA-K8N Ultra-SLI (NF4 SLI 200/400 6600GT SLI)	78.46

Comanche 4 seems to like all the Athlon64 systems and can't really differentiate between them.

X2: The Threat	Source: Egosoft

A completely rewritten 3D engine based on DirectX8 encompasses many visual effects such as volumetric Nebulae (gas clouds) that have a real impact in the game (you can hide in them) and many new engine, shield, weapon and explosion effects. Objects cast real dynamic 3D shadows! Dynamic DP3 bump mapping allows a previously unseen level of detail.

X2 The Threat
640x480	FPS	Ranking
ASRock K8 Combo-Z/ASR (Ali M1689 200/400)	189.189
Soltek SL-K8TPro-939 (K8T800 Pro 200/400)	192.078
MSI K8T Neo2-FIR (K8T800 Pro 200/400)	192.69
MSI K8N Neo2 Platinum (NF3 Ultra 200/400)	203.556
Epox 9NDA3+ (NF3 Ultra 200/400)	198.56
Gigabyte GA-K8NXP-9 (NF4 Ultra 200/400)	197.482
Gigabyte GA-K8NXP-SLI (NF4 SLI 200/400 X800 XT)	198.145
Gigabyte GA-K8NXP-SLI (NF4 SLI 200/400 6600GT SLI)	188.146
MSI K8N Neo4 Platinum/SLI (NF4 SLI 200/400 X800 XT)	211.237
MSI K8N Neo4 Platinum/SLI (NF4 SLI 200/400 6600GT SLI)	194.682
Albatron K8X890 Pro II (K8T890 200/400)	208.974
Soltek SL-K890Pro-939 (K8T890 200/400)	210.275
Gigabyte GA-K8N Ultra-SLI (NF4 SLI 200/400 X800 XT)	202.143
Gigabyte GA-K8N Ultra-SLI (NF4 SLI 200/400 6600GT SLI)	187.16

The Gigabyte GA-K8N Ultra-SLI is able to break the 200 fps barrier here, which bodes well for gaming performance on the board.

Unreal Tournament 2003	Source: Epic

Unreal Tournament 2003 is the sequel to 1999's multiple 'Game of the Year' award winner. It uses the very latest Unreal Engine technology - where graphics, sound and game play are taken beyond the bleeding edge. Unreal Tournament 2003 employs the use of Vertex as well as Pixel Shaders and it's recommended that you use a DirectX 8 videocard to get the most out of the game.

UT2003 - Flyby:
640x480	FPS	Ranking
ASRock K8 Combo-Z/ASR (Ali M1689 200/400)	342.59
Soltek SL-K8TPro-939 (K8T800 Pro 200/400)	353.64
MSI K8T Neo2-FIR (K8T800 Pro 200/400)	352.42
MSI K8N Neo2 Platinum (NF3 Ultra 200/400)	343.52
Epox 9NDA3+ (NF3 Ultra 200/400)	346.19
Gigabyte GA-K8NXP-9 (NF4 Ultra 200/400)	357.07
Gigabyte GA-K8NXP-SLI (NF4 SLI 200/400 X800 XT)	349.53
Gigabyte GA-K8NXP-SLI (NF4 SLI 200/400 6600GT SLI)	288.54
MSI K8N Neo4 Platinum/SLI (NF4 SLI 200/400 X800 XT)	364.11
MSI K8N Neo4 Platinum/SLI (NF4 SLI 200/400 6600GT SLI)	301.41
Albatron K8X890 Pro II (K8T890 200/400)	352.72
Soltek SL-K890Pro-939 (K8T890 200/400)	355.06
Gigabyte GA-K8N Ultra-SLI (NF4 SLI 200/400 X800 XT)	348.59
Gigabyte GA-K8N Ultra-SLI (NF4 SLI 200/400 6600GT SLI)	288.99
UT2003 - Botmatch:
640x480	FPS	Ranking
ASRock K8 Combo-Z/ASR (Ali M1689 200/400)	107.93
Soltek SL-K8TPro-939 (K8T800 Pro 200/400)	111.36
MSI K8T Neo2-FIR (K8T800 Pro 200/400)	111.71
MSI K8N Neo2 Platinum (NF3 Ultra 200/400)	108.12
Epox 9NDA3+ (NF3 Ultra 200/400)	109.58
Gigabyte GA-K8NXP-9 (NF4 Ultra 200/400)	112.15
Gigabyte GA-K8NXP-SLI (NF4 SLI 200/400 X800 XT)	109.88
Gigabyte GA-K8NXP-SLI (NF4 SLI 200/400 6600GT SLI)	102.31
MSI K8N Neo4 Platinum/SLI (NF4 SLI 200/400 X800 XT)	115.15
MSI K8N Neo4 Platinum/SLI (NF4 SLI 200/400 6600GT SLI)	107.01
Albatron K8X890 Pro II (K8T890 200/400)	111.01
Soltek SL-K890Pro-939 (K8T890 200/400)	111.74
Gigabyte GA-K8N Ultra-SLI (NF4 SLI 200/400 X800 XT)	109.79
Gigabyte GA-K8N Ultra-SLI (NF4 SLI 200/400 6600GT SLI)	102.59

Despite the difference between the systems, they all perform at the same high level in UT2003.