Intel Xeon Silver 4309Y 's Advantages
Released 5 years and 10 months late
Higher specification of memory (2667 vs 1866)
Newer PCIe version (4 vs 3)
Larger L3 cache size (12MB vs 6MB)
More modern manufacturing process (10nm vs 14nm)
Intel Xeon E3 1284L v4 's Advantages
Higher base frequency (2.9GHz vs 2.8GHz)
Lower TDP (47W vs 105W)