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The new SAPPHIRE HD 7700 series is a new family of graphics cards targeting the enthusiast on a budget and mainstream users looking for increased graphics performance. Among them, the SAPPHIRE HD 7770 GHz Edition offers 1GHz clock for top of line performance. With AMD’s GCN Architecture and the industry’s very first 28nm GPU design, the AMD Radeon HD 7770 GHz Edition offers incredible, best-in-class entertainment experiences that every gamer deserves. Packed with incredible features, such as PCI Express 3.0, the ultra-efficient AMD ZeroCore Power technology or AMD Eyefinity technology, this card offers the world’s most advanced graphics.