EVGA GeForce GTX 580 1536 MB GDDR5 PCI Express 2.0 2DVI/Mini HDMI SLI Ready Graphics Card, 015-P3-1580-TR Chipset: GeForce GTX580 Engine Clock: 772 MHz Video Memory: 1536MB DDR5Support nVidia 3D Vision Surround Memory Clock: 4.008 GHz Memory Interface: 384-bit Memory Bandwidth: 192.4 GB/sSupport nVidia CUDA Technology with CUDA C/C++, DirectCompute 5.0 and OpenGL Bus: PCI-Express 2.0 x16 RAMDAC: 400 MHz Max. Resolution: 2560 x 1600Support nVidia PureVideo HD Technology Connectors: Dual DVI-I; Mini HDMI Thermal: FansinkSupport nVidia PhysX Technology Support nVidia 2-Way/3-Way and 4-way SLI Technology Support HDCP - High-bandwidth Digital Content Protection Support Microsoft DirectX 11 and OpenGL 4.1