AMD Radeon HD 7770 Performance Preview: Bringing 28nm GCN to the Masses Officially launched later today, the AMD Radeon 'Cape Verde' HD 7770 features stock 1GHz core clock speed, previously unheard of on entry level SKUs, along with the introduction of DirectX 11.1, PCIe 3.0 and the use of GDDR5 memory. Read more for our quick performance preview of this new game changer for the masses.

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