Intel Xeon Gold 6448H 's Advantages
Higher base frequency (2.4GHz vs 2.1GHz)
Lower TDP (250W vs 330W)
Intel Xeon Platinum 8558 's Advantages
Released 11 months late
Higher specification of memory (5200 vs 4800)
Larger L3 cache size (260MB vs 60MB)
More modern manufacturing process (7nm vs 10nm)