the difference will be minimal.Matters little in desktop machines. On multi socket machines the HT is also utilized for socket to socket communication which makes a dramatic difference in performance n is the reason why most clustered super computers use AMD. n is also a reason why Intel is going the same route. Intels systems must utilize a shared northbridge for core to core and socket to socket communications.
but in desktop.....1.CPU not strong enough to utilize HT3 fully. 2. HT3 is not fully optimized yet