Intel Xeon E7 4820 v3 's Advantages
Lower TDP (115W vs 300W)
Intel Xeon Platinum 8558U 's Advantages
Released 8 years and 6 months late
Higher specification of memory (4800 vs 1866)
Newer PCIe version (5 vs 3)
Higher base frequency (2.0GHz vs 1.9GHz)
Larger L3 cache size (260MB vs 25MB)
More modern manufacturing process (7nm vs 22nm)