Intel Xeon E5 1620 v3 's Advantages
Released 4 years and 6 months late
Higher specification of memory (2133 vs 1333)
Newer PCIe version (3 vs 2)
Higher base frequency (3.5GHz vs 2GHz)
More modern manufacturing process (22nm vs 45nm)
Xeon E7540 's Advantages
Larger L3 cache size (18MB vs 10MB)
Lower TDP (105W vs 140W)