Comparing Xeon architecture to mainstream i7 architecture isn't the right way around. Last gen i5 quads is also a grand statement. i5 and i7, and to an extent, i3 lines have several processors, some generations has upwards of 20. So it's very easy to compare them to a current generation dual core i7. Especially when the latter uses 4 threads and runs at the same speeds such as those from the Ivy Bridge generation. I'd consider "running circles around" a 15-25% performance increase in benchmarks and a noticeable difference in real world use in conjunction with sterile benchmarks.