Intel Xeon Silver 4309Y 's Advantages
Released 11 years and 2 months late
Higher specification of memory (2667 vs 1333)
Newer PCIe version (4 vs 2)
Higher base frequency (2.8GHz vs 2.266GHz)
Larger L3 cache size (12MB vs 4MB)
More modern manufacturing process (10nm vs 45nm)
Xeon EC5539 's Advantages
Lower TDP (65W vs 105W)