The Diamond HD 4890 is a magnificent beast. A 956 million-transistor processing powerhouse, a technology statement and dream come true for enthusiast gamers hungry for the fastest GPU ever made. Featuring a 2nd generation unified shader architecture, massive processing power and an unprecedented 256-bit memory interface, HD 4890 will deliver astonishing performance and the richest feature-set yet for a big ultra-high definition gaming experience with all of the bells and whistles turned up to the max. The HD 4890 is quite simply a ticket to the future of PC gaming. Technical Specs: 256-bit GDDR5 Memory Interface, superscale unified shader architecture, 800 unified stream processors. Enjoy a dramatic high-definition gaming experience. Enhance your game play and experience sharper images, more textures, and the improved lighting effects that create lifelike interactivity and immersive realism enabled by DirectX 9, 10 and 10.1 support.ATI Avivo¿ HD Video & Display Technology. Combine advanced HD video processing with cool, quiet, and energy efficient operation that will delight a home theater enthusiast. Includes Unified Video Decoder 2 (UVD) for Blu-ray and HD DVD. Certified for Windows ¿ and built-in HDMI with Multi-channel 7.1 surround audio (With included DVI to HDMI adapter). Plus 30 bit display processing, CATALYST software drivers and Windows Vista 3D environment support. Box Contents: 4890PE51G, Install CD, Quick Start Guide, Component HDTV adapter, DVI-to-HDMI Adapter, DVI-to-VGA Adapter, Crossfire Bridge Interconnect.