Zotac AMP GeForce GTX 470 1280 MB Graphics Card 320-bit (656MHz/3402MHz) NVIDIA GeForce GTX 470 GPU, 448 Unified Shaders, 1280MB GDDR5, 320-bit memory bus, Core Clock: 656 MHz, Shader Clock: 1312 MHz, Memory Clock: 3402 MHz, PCI Express 2.0 x16 DirectX 11 support, OpenGL 3.2, NVIDIA ForceWare Drivers, Windows XP/Vista/7 NVIDIA Unified Architecture, NVIDIA 3D Vision Surround ready, NVIDIA PhysX Technology, NVIDIA CUDA Technology, 32x Sample Anti-Aliasing technology Dual dual-link DVI (Up to 2560x1600), Mini-HDMI 1.3a w/audio (8-channel LPCM), HDCP ready ED 480p, HD 720p, HD 1080i, Full HD 1080p