Seems in the blink of an eye - namely the last four or so years - there has been a convergence of enterprise/desktop - technology/solutions/performance. Desktop solutions from both AMD and Intel these days are simply Phenom-n-al (pun intended). . .This is a bit of an important point == AMD's performance claims are for Barcelona in a server environment, those claims are not translatable over to desktop which is what you and I are interested in....
Jack