Intel Xeon Platinum 8558 's Advantages
Released 11 years and 1 months late
Higher specification of memory (DDR5-5200 vs DDR3)
Newer PCIe version (5 vs 2)
Higher base frequency (2.1GHz vs 1.8GHz)
Larger L3 cache size (260MB vs 8MB)
Opteron 6366 HE 's Advantages
Lower TDP (85W vs 330W)