Intel Xeon E5 1620 v2 's Advantages
Released 1 years and 6 months late
Higher specification of memory (1866 vs 3)
Higher base frequency (3.7GHz vs 2.7GHz)
More modern manufacturing process (22nm vs 32nm)
Intel Xeon E5 2680 's Advantages
Larger L3 cache size (20MB vs 10MB)