hello is there any benchmark comparison between Xeon Harpertown, AMD Opteron, AMD Phenom, and Intel Core 2 Quad? I know there is a server vs desktop processor comparison, but I would like to know, since they have the prices roughly Specificaly I would like to know how do these compare: Intel Xeon E5405 Harpertown 2.0GHz Intel Core 2 Quad Q6600 Kentsfield 2.4GHz AMD Phenom 9500 Agena 2.2GHz thanks