Intel Xeon E5 1691 v3 's Advantages
Lower TDP (135W vs 350W)
Intel Xeon Platinum 8558P 's Advantages
Released 9 years and 3 months late
Higher specification of memory (4800 vs 2133)
Newer PCIe version (5 vs 3)
Higher base frequency (2.7GHz vs 2.5GHz)
Larger L3 cache size (260MB vs 35MB)
More modern manufacturing process (7nm vs 22nm)