"The new Radeon HD 7770 (a.k.a. "Cape Verde XT") is a mainstream graphics chip based on the latest graphics architecture from AMD, dubbed "Graphics Core Next" or simply "GCN," which supports the new PCI Express 3.0 connection and the latest DirectX version (11.1). Let's see how the Super Overclocked Edition from XFX fared in our tests."
Any major computer upgrade generally requires a full software reinstall too. No so if you heed the advice in the guide to Upgrading a Motherboard without Reinstalling. PCSTATS Tips