GeForce 9800 GTX
Gamers can combine NVIDIA GeForce 9800 GTX graphics cards in 3-way SLI configurations with NVIDIA nForce 790i-based motherboard solutions to enable spectacular performance in today’s games such as BioShock, Unreal Tournament 3, and Call of Duty 4 at resolutions up to 2560x1600.
Geforce 9800 GX2
By combining the NVIDIA nForce 790i motherboard with two GeForce 9800 GX2 graphics cards, gamers can harness the power of 512 processor cores to take their gaming experience to amazing new levels of performance.
nForce 790i Ultra SLI

The NVIDIA nForce 790i Ultra SLI motherboard is the most overclockable motherboard platform for Intel processors and is designed for current and next-generation Intel CPUs, including those that support a 1,600 MHz frontside bus (FSB).
GeForce 9800 GTX

The NVIDIA GeForce 9800 GTX GPU provides consumers with the best bang for the buck in the $299-$349 price range.
GeForce 9800 GX2
With 256 processing cores packed into its sleek black housing, the GeForce 9800 GX2 is the world’s fastest graphics card.
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NVIDIA Quad SLI with dual GeForce 9800 GX2 graphics cards enables gamers to play Crysis for the first time with all DirectX 10 options turned on at HD settings.