Xeon EC5509 's Advantages
Lower TDP (85W vs 125W)
Xeon D 2798NT 's Advantages
Released 12 years late
Higher specification of memory (3200 vs 1066)
Newer PCIe version (4 vs 2)
Higher base frequency (2.1GHz vs 2GHz)
Larger L3 cache size (30MB vs 8MB)
More modern manufacturing process (10nm vs 45nm)