The pictures shown on the forum represent an alleged engineering sample of the card, which had DVI, HDMI, and D-Sub connectors, as well as dual slot active cooling in the form of a heatsink with radially-projecting metal fins and a fan nested inside. The card also appears to draw all its power from the PCI-Express slot.
Based on a 40nm GPU codenamed "Redwood," the Radeon HD 5670's leaked specifications include a graphics core clocked at 775MHz and 1GB of GDDR5 memory operating at 1,000MHz on a 128-bit bus. Furthermore a GPU-Z screenshot shows it has 400 stream processors, 16 ROPs and 64GB/s of memory bandwidth.
According to the poster, AMD's Radeon HD 5670 scores 859 on the Unigine benchmark, a 23 percent increase when compared to the previous-generation Radeon HD 4670. It also showed a nice 47 percent improvement compared to its predecessor when running Street Fighter 4 at a resolution of 1600 x 1200, with no anti-aliasing and 16x anisotropic filtering; scoring 10,473 points with average of 95 frames per second.
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