Zotac ZT-40502-10L GeForce GTS 450 AMP 1 GB 128-bit (875MHz/4000MHz) NVIDIA GeForce GTS 450 GPU, 192 Unified Shaders, 1GB GDDR5, 128-bit memory bus, Core Clock: 875 MHz, Shader Clock: 1750 MHz DirectX 11 support, OpenGL 4.0, NVIDIA ForceWare Drivers, Windows XP/Vista/7 NVIDIA Unified Architecture, NVIDIA 3D Vision Surround ready, NVIDIA SLI ready, NVIDIA PhysX & CUDA Technology Dual dual-link DVI (Up to 2560x1600), Mini-HDMI 1.3a w/audio (8-channel LPCM & bitstream), SLI connector (2-way SLI ready) ED 480p, HD 720p, HD 1080i, Full HD 1080p