Mfr Part Number: 03G-P3-1584-AR Chipset: GeForce GTX580 Engine Clock: 772 MHz Video Memory: 3GB DDR5 Memory Clock: 4008 MHz Memory Interface: 384-bit Memory Bandwidth: 192.4 GB/s Bus: PCI-Express 2.0 x16 Stream Processors: 512 RAMDAC: 400 MHz Max. Resolution: 2560 x 1600 Connectors: Dual DVI; Mini-HDMI Thermal: Fansink Support Microsoft Windows XP/Vista/7 Support nVidia CUDA Technology Support nVidia PhysX technology Support nVidia 2-Way, 3-Way and 4-Way SLI Ready Support nVidia 3D Vision Surround Ready Support nVidia PureVideo HD Technology Support HDCP - High-bandwidth Digital Content Protection Support Microsoft DirectX 11, OpenGL 4.0 600 Watt or greater power supply with a minimum of 42 amps on the +12 volt rail Package: Retail