Intel Xeon E5 2620 v2 's Advantages
Lower TDP (80W vs 235W)
Xeon 6553P B 's Advantages
Released 11 years and 5 months late
Higher specification of memory (6400 vs 3)
Newer PCIe version (5 vs 3)
Higher base frequency (2.6GHz vs 2.1GHz)
Larger L3 cache size (144MB vs 15MB)
More modern manufacturing process (5nm vs 22nm)