Xeon EC5509 's Advantages
Lower TDP (85W vs 270W)
Intel Xeon Gold 6554S 's Advantages
Released 13 years and 10 months late
Higher specification of memory (5200 vs 1066)
Newer PCIe version (5 vs 2)
Higher base frequency (2.2GHz vs 2GHz)
Larger L3 cache size (180MB vs 8MB)
More modern manufacturing process (10nm vs 45nm)