Intel Xeon E7 8870 's Advantages
Higher base frequency (2.4GHz vs 2.0GHz)
Lower TDP (130W vs 300W)
Intel Xeon Platinum 8558U 's Advantages
Released 12 years and 8 months late
Higher specification of memory (4800 vs 3)
Larger L3 cache size (260MB vs 30MB)
More modern manufacturing process (7nm vs 32nm)