SLI Performance on the Intel Platform

Of course, how could we test the NVIDIA nForce4 SLI Intel Edition chipset without testing out the SLI performance? 

For these tests, all the specifications remained the same as the other benchmarks you just saw, with the expection of the graphics card.  For our single GPU scores, you are seeing the results with an NVIDIA 6800GT at stock speeds in place with a x16 PCIe SLI slot.  The dual GPU results are with two 6800GT cards running in the dual x8 PCIe slots.

Let’s see if SLI on the Intel platform is going to make it worth while…

NVIDIA nForce4 SLI Intel Edition Review - Chipsets 56

NVIDIA nForce4 SLI Intel Edition Review - Chipsets 57

NVIDIA nForce4 SLI Intel Edition Review - Chipsets 58

In the 3DMark05 test, the dual GPU configuration sees a 62.5% gain in performance, obviously quite a signifcant gain.  Running the tests on the older, UT2003 engine, shows much different results.  As we would expect, the extra over head of SLI is actually a burden on the system at minimum detail until we get to the 1280×1024 resolution.  At 1600×1200 we see nearly a 30% gain in performance, which is pretty impressive.  The maximum detail setting obviously places a big load on the processor as well, and thus no benefit is seen in SLI mode.

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