Intel Xeon E5 4620 v3 's Advantages
Released 1 years and 9 months late
Larger L3 cache size (25MB vs 10MB)
Lower TDP (105W vs 130W)
Intel Xeon E5 1620 v2 's Advantages
Higher specification of memory (1866 vs 1866)
Higher base frequency (3.7GHz vs 2GHz)