The Sapphire Radeon HD 4770 introduces the 40nm RV740 GPU paired to 512MB of DDR5 video frame buffer memory, and a double-height cooler allows the 100277L model video card to operate at 750MHz. As of May 2009, the Sapphire HD4770 sells for as low as $99, which allows gamers to create a very affordable CrossFireX array using this mainstream graphics accelerator. Benchmark Reviews compares two Sapphire Radeon HD4770's assembled into a CrossFireX set against a large collection of high-performance GPU's for the tests in this article.

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