Intel Xeon E5 2620 's Advantages
Lower TDP (95W vs 140W)
Intel Xeon E7 8893 v3 's Advantages
Released 3 years and 3 months late
Higher specification of memory (1866 vs 3)
Higher base frequency (3.2GHz vs 2GHz)
Larger L3 cache size (45MB vs 15MB)
More modern manufacturing process (22nm vs 32nm)