Intel Xeon Silver 4309Y 's Advantages
Released 3 years and 4 months late
Higher specification of memory (DDR4-2667 vs DDR4-2666)
Newer PCIe version (4 vs 3)
Larger L3 cache size (12MB vs 11MB)
More modern manufacturing process (10nm vs 14nm)
Lower TDP (105W vs 120W)
Intel Xeon W 2140B 's Advantages
Higher base frequency (3.2GHz vs 2.8GHz)