Intel Xeon Platinum 8558U 's Advantages
Released 8 years and 6 months late
Higher specification of memory (DDR5-4800 vs DDR3)
Newer PCIe version (5 vs 3)
Larger L3 cache size (260MB vs 20MB)
More modern manufacturing process (7nm vs 22nm)
Intel Xeon E7 4809 v3 's Advantages
Higher base frequency (2GHz vs 2.0GHz)
Lower TDP (115W vs 300W)