Intel Xeon E5 2640 's Advantages
Larger L3 cache size (15MB vs 12MB)
Lower TDP (95W vs 105W)
Intel Xeon Silver 4309Y 's Advantages
Released 9 years and 1 months late
Higher specification of memory (2667 vs 3)
Newer PCIe version (4 vs 3)
Higher base frequency (2.8GHz vs 2.5GHz)
More modern manufacturing process (10nm vs 32nm)