POWERCOLOR RADEON HD 7850 REVIEW - "The Powercolor Radeon HD 7850 review also features the Sapphire Radeon HD 5870. The Powercolor Radeon HD 7850 uses the Pitcairn GPU at 860Mhz and has 2GB GDDR5 memory running at 4800Mhz. The Powercolor Radeon HD 7850 has a 256Bit Memory Interface, 1024 Shader Processors and DirectX 11.1. The Sapphire Radeon HD 5870 uses the Cypress GPU at 850Mhz and has 1GB GDDR5 memory running at 4800Mhz. The Sapphire Radeon HD 5870 has a 256Bit Memory Interface, 1600 Shader Processors and DirectX 11. We will be testing the Powercolor Radeon HD 7850 and Sapphire Radeon HD 5870 using Battlefield 3, Crysis 2, Dirt 3, Dragon Age II, Hard Reset, Shogun 2 and Elder Scrolls V Skyrim."