A few hours ago AMD notified the press that today they would allow publishing of select information on R9 290X performance. That performance was to be a single benchmark, Bioshock Infinite, at 4K resolution (3840x2160) and against the GTX 780."
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