Intel Xeon Platinum 8458P 's Advantages
Higher base frequency (2.7GHz vs 2.1GHz)
Intel Xeon Platinum 8558 's Advantages
Released 11 months late
Higher specification of memory (DDR5-5200 vs DDR5-4800)
Larger L3 cache size (260MB vs 82.5MB)
More modern manufacturing process (7nm vs 10nm)
Lower TDP (330W vs 350W)