Xeon E6540 's Advantages
Lower TDP (105W vs 270W)
Intel Xeon Gold 6554S 's Advantages
Released 13 years and 9 months late
Higher specification of memory (5200 vs 1333)
Newer PCIe version (5 vs 2)
Higher base frequency (2.2GHz vs 2GHz)
Larger L3 cache size (180MB vs 18MB)
More modern manufacturing process (10nm vs 45nm)