Intel Xeon E5 2667 v2 's Advantages
Released 1 years and 6 months late
Higher base frequency (3.3GHz vs 3GHz)
Larger L3 cache size (20MB vs 5MB)
More modern manufacturing process (22nm vs 32nm)
Intel Xeon E5 2637 's Advantages
Lower TDP (80W vs 130W)