Intel Xeon Platinum 8558P 's Advantages
Larger L3 cache size (260MB vs 256MB)
Lower TDP (350W vs 360W)
AMD EPYC 9555P 's Advantages
Released 10 months late
Higher specification of memory (6000 vs 4800)
Higher base frequency (3.2GHz vs 2.7GHz)
More modern manufacturing process (4nm vs 7nm)