Zotac GeForce GTX 560 Ti 448 Core 1280MB GDDR5 PCI Express 2.0 DVI HDMI DisplayPort SLI Ready Graphics Card ZT-50313-10M NVIDIA GeForce GTX 560 Ti 448 cores GPU, 448 Unified Shaders, 1280MB GDDR5, 320-bit memory bus, Core Clock: 765 MHz, Shader Clock: 1530 MHz, Memory Clock: 3800 MHz, PCI Express 2.0 (compatible with 1.1) NVIDIA ForceWare Drivers, Microsoft DirectX 11, OpenGL 4.2, Microsoft 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, HDMI 1.4a compliant, Hardware-accelerated Blu-ray 3D ready Dual dual-link DVI (Up to 2560x1600), HDMI 1.4a w/audio, DisplayPort, HDCP ready, SLI Bridge connector (3-way SLI ready) ED 480p, HD 720p, HD 1080i, Full HD 1080p 600-Watt power supply recommended, 210-watt max power consumption