Intel Xeon E5645 's Advantages
Lower TDP (80W vs 270W)
Intel Xeon Gold 6544Y 's Advantages
Released 13 years and 9 months late
Higher specification of memory (5200 vs 3)
Newer PCIe version (5 vs 2)
Higher base frequency (3.6GHz vs 2.4GHz)
Larger L3 cache size (45MB vs 12MB)
More modern manufacturing process (10nm vs 32nm)