So under the right circumstances the Phenom II X6 processors are extremely fast, faster than the Core i5 and Core i7 quad-core processors. Again the problem is that most applications lack proper support for these new processors, which is half the reason why the Core i7 920 appeared no faster than the Core i5 750 in most tests back when we did our clock-for-clock comparison, despite its support for Hyper-Threading. Few applications could make use of the 8 threads supported by the Core i7 920 and as a result the Core i5 750 appeared just as fast with only 4 threads.



Link: Legion hardware