Intel Xeon E5 2637 's Advantages
Lower TDP (80W vs 130W)
Intel Xeon E5 2637 v2 's Advantages
Released 1 years and 6 months late
Higher base frequency (3.5GHz vs 3GHz)
Larger L3 cache size (10MB vs 5MB)
More modern manufacturing process (22nm vs 32nm)