Can anyone comment on this if this is true? Is any one here who run both of the products? http://crave.cnet.com/8301-1_105-9760910-1.html
Well, yes - Fusion supports SMP, which parallels does not, so for multithreaded apps you will see ~2x performance under fusion.
Did any one do such compare between both products on single CPU / single core machine just to show how both products compare on exec hardware?