Intel Xeon Platinum 8558P 's Advantages
Released 2 years and 8 months late
Higher specification of memory (4800 vs 2667)
Newer PCIe version (5 vs 4)
Larger L3 cache size (260MB vs 12MB)
More modern manufacturing process (7nm vs 10nm)
Intel Xeon Silver 4309Y 's Advantages
Higher base frequency (2.8GHz vs 2.7GHz)
Lower TDP (105W vs 350W)