3DMark05 measures performance by simulating DirectX 9.0c games, i.e. using Shader 3.0 model. This programming model is used by games like Far Cry. This programming model is used by GeForce series 6 and 7 from nVidia and Radeon X1000 series from ATI. You can find the results below.

Motherboard	3Dmark05 (Build 1.2.0)	%
ECS KN1 SLI Extreme (nForce4 SLI)	6354	+79.75
Foxconn WinFast NF4UK8AA-8EKRS (nForce4 Ultra)	3600	+1.84
ASUS A8N-SLI Deluxe (nForce4 SLI) Normal	3597	+1.75
ECS KN1 Extreme (nForce4 Ultra)	3595	+1.70
DFI LANParty UT nF4 SLI-D (nForce4 SLI) Normal	3589	+1.53
ECS KN1 SLI Extreme (nForce4 SLI) Normal	3535
Albatron K8SLI (nForce4 SLI) Normal	3529	-0.17
MSI K8N Diamond Plus (nForce4 SLI X16) Normal	3509	-0.74
Sapphire PI-A9RX480 (ATI Xpress 200P)	3427	-3.15
ULi AP970A (ULi M1697)	3317	-6.57
ULi AP9567A (ULi M1695)	3276	-7.91
ULi AP9567A (ULi M1695) - AGP	3111	-10.09

On this test ECS KN1 SLI Extreme achieved a performance similar to the majority of motherboards we tested, being faster than Sapphire PI-A9RX480 (ATI Xpress 200P) and all motherboards based on ULi chipset.

We included ECS KN1 SLI Extreme results with SLI for you to compare the performance difference you may expect when enabling SLI on this motherboard. Enabling SLI we had an 79.75% performance increase on this test.

Comparing the results among SLI-enabled motherboards (see table below), ECS KN1 SLI Extreme achieved a performance similar to other motherboards we tested.

Motherboard	3Dmark05 (Build 1.2.0)	%
Albatron K8SLI (nForce4 SLI)	6397	+0.68
ECS KN1 SLI Extreme (nForce4 SLI)	6354
ASUS A8N-SLI Deluxe (nForce4 SLI)	6346	-0.13
MSI K8N Diamond Plus (nForce4 SLI X16)	6339	-0.24
DFI LANParty UT nF4 SLI-D (nForce4 SLI)	6262	-1.47