Intel Xeon E5 2609 's Advantages
Lower TDP (80W vs 105W)
Intel Xeon Silver 4309Y 's Advantages
Released 9 years and 1 months late
Higher specification of memory (DDR4-2667 vs DDR3)
Newer PCIe version (4 vs 3)
Higher base frequency (2.8GHz vs 2.4GHz)
Larger L3 cache size (12MB vs 10MB)
More modern manufacturing process (10nm vs 32nm)