Intel Xeon E5 2687W v2 's Advantages
Released 3 years and 6 months late
Newer PCIe version (3 vs 2)
Higher base frequency (3.4GHz vs 2GHz)
Larger L3 cache size (20MB vs 18MB)
More modern manufacturing process (22nm vs 45nm)
Xeon E7540 's Advantages
Higher specification of memory (1333 vs 3)
Lower TDP (105W vs 130W)