Xeon E 2278GE 's Advantages
Higher base frequency (3.3GHz vs 2.1GHz)
Lower TDP (80W vs 330W)
Intel Xeon Platinum 8558 's Advantages
Released 4 years and 6 months late
Higher specification of memory (5200 vs 2666)
Newer PCIe version (5 vs 3)
Larger L3 cache size (260MB vs 16MB)
More modern manufacturing process (7nm vs 14nm)