Intel Xeon Platinum 8458P 's Advantages
Released 12 years and 10 months late
Higher specification of memory (4800 vs 3)
Newer PCIe version (5 vs 2)
Higher base frequency (2.7GHz vs 2.4GHz)
Larger L3 cache size (82.5MB vs 12MB)
More modern manufacturing process (10nm vs 32nm)
Intel Xeon E5645 's Advantages
Lower TDP (80W vs 350W)