With this powerful NVIDIA GeForce 6600 512 MB DDR PCI Express video card you can Supercharge your gaming and video! This NVIDIA GeForce 6600 features a PCI Express interface which delivers over 4 GB/sec. in both upstream and downstream data transfers. With support for Microsoft DirectX 9.0Shader Model 3.0 and 512 MB DDR memory, this NVIDIA GeForce 6600 delivers ultra-realistic effects, unmatched features, and rock-solid stability so you can play your game the way it’s meant to be played.