Intel Xeon E5 2470 v2 's Advantages
Released 3 years and 6 months late
Higher base frequency (2.4GHz vs 1.866GHz)
Larger L3 cache size (25MB vs 18MB)
More modern manufacturing process (22nm vs 45nm)
Xeon E7520 's Advantages
Higher specification of memory (1333 vs 3)