Intel Xeon E5 2628 v3 's Advantages
Higher base frequency (2.5GHz vs 2.1GHz)
Lower TDP (85W vs 270W)
Intel Xeon Gold 6538N 's Advantages
Released 9 years and 3 months late
Higher specification of memory (5200 vs 2133)
Newer PCIe version (5 vs 3)
Larger L3 cache size (60MB vs 20MB)
More modern manufacturing process (10nm vs 22nm)