Xeon E 2176G 's Advantages
Higher base frequency (3.7GHz vs 2.1GHz)
Lower TDP (80W vs 205W)
Xeon Gold 6538N 's Advantages
Released 5 years and 5 months late
Higher specification of memory (DDR5-5200 vs DDR4-2666)
Newer PCIe version (5 vs 3)
Larger L3 cache size (60MB vs 12MB)
More modern manufacturing process (10nm vs 14nm)