"This factory overclocked card runs at 1264 MHz right out of the box, which XFX refers to as "True Clock", while the 4GB of memory run at 7000MHz. But don't let these seemingly conservative numbers discourage you, this card is XFX OC+ capable. What is that exactly you might ask? In a nut shell, it means that the good folks at XFX spent sleepless nights making sure that every one of these cards is rigorously tested at the factory level to go beyond the True Clock speeds. And I can confirm this fact right here and now!"
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