Performance in Applications
Now that we have measured Phenom II X6 performance in several popular applications we can draw a very sad conclusion that new six-core AMD processors can only compete successfully against quad-core competitor solutions that do not support Hyper-Threading technology. As for Core i7 processors, which do support this technology, they will be faster in most cases. So, Phenom II X6 should probably be considered an alternative to Core i5 CPUs at best.
However, it is not always the case. There are a number of tasks where new AMD processors do really well. These are the tasks dealing with video processing and transcoding. This is where Phenom II X6 look way better than in all other cases, they even run faster than Core i7-860 or Core i7930. So if you work with media content a lot, we would strongly recommend you to consider the new AMD processors.