Xeon E 2176G 's Advantages
Higher base frequency (3.7GHz vs 2.1GHz)
Lower TDP (80W vs 330W)
Intel Xeon Platinum 8558 's Advantages
Released 5 years and 5 months late
Higher specification of memory (5200 vs 2666)
Newer PCIe version (5 vs 3)
Larger L3 cache size (260MB vs 12MB)
More modern manufacturing process (7nm vs 14nm)