Xeon W 1390P 's Advantages
Higher base frequency (3.5GHz vs 2.7GHz)
Lower TDP (125W vs 350W)
Intel Xeon Platinum 8558P 's Advantages
Released 2 years and 7 months late
Higher specification of memory (4800 vs 3200)
Newer PCIe version (5 vs 4)
Larger L3 cache size (260MB vs 16MB)
More modern manufacturing process (7nm vs 14nm)