The GeForce 8 series is Nvidia's current graphics card family. Although it is the first DirectX 10 compliant graphics product on the market, Nvidia has had a rough start in Windows Vista due to driver hassles. The chip runs at 500 MHz, while the pixel shader core has an independent clock generator and runs at 1.2 GHz. There are 320 MB and 640 MB versions available, both running at 800 MHz (1.6 GHz DDR).
We used a GeForce 8800 GTS with 320 MB GDDR3 memory from Zotec. The card sticks to Nvidia's reference design.