MSI N670GTX-PM2D2GD5/OC GeForce GTX 670 2 GB 256-bit GDDR5 PCI Express 3.0 x16 HDCP Ready SLI Support Video Card (N670GTX-PM2D2GD5/OC) Interface: PCI Express 3.0 x16 Chipset Manufacturer: NVIDIA GPU: GeForce GTX 670 Core Clock: 965MHz Memory Size: 2GB Memory Interface: 256-bit