Xeon E5540 's Advantages
Lower TDP (80W vs 150W)
Intel Xeon Gold 5415 's Advantages
Released 13 years and 10 months late
Higher specification of memory (4400 vs 1066)
Newer PCIe version (5 vs 2)
Higher base frequency (2.9GHz vs 2.533GHz)
Larger L3 cache size (22.5MB vs 8MB)
More modern manufacturing process (10nm vs 45nm)