Intel Xeon E5 2670 v2 's Advantages
Released 1 years and 6 months late
Larger L3 cache size (25MB vs 20MB)
More modern manufacturing process (22nm vs 32nm)
Lower TDP (115W vs 130W)
Intel Xeon E5 2680 's Advantages
Higher base frequency (2.7GHz vs 2.5GHz)