Intel Xeon E5 2637 v2 's Advantages
Released 3 years and 6 months late
Newer PCIe version (3 vs 2)
Higher base frequency (3.5GHz vs 1.733GHz)
More modern manufacturing process (22nm vs 45nm)
Xeon E6510 's Advantages
Higher specification of memory (1333 vs 3)
Larger L3 cache size (12MB vs 10MB)
Lower TDP (105W vs 130W)