Product Detail NVIDIA GeForce GTS 450 GPU, 192 Unified Shaders, 1GB GDDR5, 128-bit memory bus, Core Clock: 810 MHz, Shader Clock: 1620 MHz, Memory Clock: 3608 MHz, PCI Express 2.0 x16 (compatible with 1.1) 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, Nvidia PureVideo HD Technology, HDMI xvYCC Color & DeepColor technologies, Dolby True HD & DTS-HD Master Audio bitstream support Dual dual-link DVI (Up to 2560x1600), Mini-HDMI 1.3a w/audio (8-channel LPCM & bitstream), SLI connector (2-way SLI ready), HDCP ready ED 480p, HD 720p, HD 1080i, Full HD 1080p . The "Zotac 810MHz/3608MHz GeForce GTS 450 1 GB GDDR5 128-bit PCI Express Graphic Card ZT-40501-10L" is best product for you. We recommended Zotac 810MHz/3608MHz GeForce GTS 450 1 GB GDDR5 128-bit PCI Express Graphic Card ZT-40501-10L