Specifications 627 million 40nm transistors TeraScale 2 Unified Processing Architecture 400 Stream Processing Units 20 Texture Units 32 Z/Stencil ROP Units 8 Color ROP Units GDDR5 memory interface PCI Express 2.1 x16 bus interface DirectX® 11 support Certified drivers for Windows 7, Windows Vista, and Windows XP Speeds & Feeds Engine clock speed: 775 MHz Processing power (single precision): 620 GigaFLOPS Polygon throughput: 775M polygons/sec Data fetch rate (32-bit): 62 billion fetches/sec Texel fill rate (bilinear filtered): 15.5 Gigatexels/sec Pixel fill rate: 6.2 Gigapixels/sec Anti-aliased pixel fill rate: 24.8 Gigasamples/sec Memory clock speed: 1.0 GHz Memory data rate: 4.0 Gbps Memory bandwidth: 64 GB/sec Maximum board power: 64 Watts System Requirements Suggested ATI RadeonTM HD 5670 1GB GDDR5 System Requirements PCI Express® based PC is required with one X16 lane graphics slot available on the motherboard 400 Watt or greater power supply recommended (500 Watt for ATI CrossFireXTM technology in dual mode) Certified power supplies are recommended. Refer to http://support.amd.com/us/certified/power-supplies/Pages/listing.aspx for a list of Certified products Minimum 1GB of system memory Installation software requires CD-ROM drive DVD playback requires DVD drive Blu-rayTM playback requires Blu-ray drive For an ATI CrossFireXTM system, a second ATI RadeonTM HD 5670 graphics card, an ATI CrossFireX Ready motherboard and one ATI CrossFireX Bridge Interconnect cable per graphics card (included) are required
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