Intel Xeon Platinum 8558 's Advantages
Released 5 years late
Higher specification of memory (DDR5-5200 vs DDR4-2933)
Newer PCIe version (5 vs 3)
Larger L3 cache size (260MB vs 38.5MB)
More modern manufacturing process (7nm vs 14nm)
Intel Xeon Platinum 8280M 's Advantages
Higher base frequency (2.7GHz vs 2.1GHz)
Lower TDP (205W vs 330W)