Intel Xeon E5 2670 v2 's Advantages
Released 5 years late
Newer PCIe version (3 vs 2)
More modern manufacturing process (22nm vs 45nm)
Lower TDP (115W vs 120W)
Xeon X5470 's Advantages
Higher specification of memory (3 vs 3)
Higher base frequency (3.333GHz vs 2.5GHz)