AMD EPYC 9555 's Advantages
Released 10 months late
Higher specification of memory (6000 vs 5200)
Higher base frequency (3.2GHz vs 2.2GHz)
Larger L3 cache size (256MB vs 180MB)
More modern manufacturing process (4nm vs 10nm)
Xeon Gold 6554S 's Advantages
Lower TDP (270W vs 360W)