Xeon EC5509 's Advantages
Lower TDP (85W vs 105W)
Intel Xeon Silver 4309Y 's Advantages
Released 11 years and 2 months late
Higher specification of memory (2667 vs 1066)
Newer PCIe version (4 vs 2)
Higher base frequency (2.8GHz vs 2GHz)
Larger L3 cache size (12MB vs 8MB)
More modern manufacturing process (10nm vs 45nm)