Intel Xeon E5 1620 's Advantages
Released 111 years and 2 months late
Higher base frequency (3.6GHz vs 2.8GHz)
Lower TDP (130W vs 160W)
Intel Xeon E5 2693 v3 's Advantages
Higher specification of memory (2133 vs 3)
Larger L3 cache size (30MB vs 10MB)
More modern manufacturing process (22nm vs 32nm)