I not only read every site when making the same recent decision, but actually tested equivalent procesors on the machines I wanted in store. I found no discernable difference WHATSOEVER and actually gave the slight advantage to AMD as it was a bit faster in several applications and processes (including a video editing related program/file) I tested. As the AMD machine offered a lot more bang for the buck, (more like a $400-500 savings I opted for the AMD and am not disappointed