Intel Xeon Silver 4309Y 's Advantages
Released 5 years and 10 months late
Higher specification of memory (2667 vs 2133)
Newer PCIe version (4 vs 3)
More modern manufacturing process (10nm vs 22nm)
Lower TDP (105W vs 135W)
Intel Xeon E5 4655 v3 's Advantages
Higher base frequency (2.9GHz vs 2.8GHz)
Larger L3 cache size (30MB vs 12MB)