Xeon E6540 's Advantages
Higher specification of memory (1333 vs 3)
Intel Xeon E5 2692 v2 's Advantages
Released 3 years and 6 months late
Newer PCIe version (3 vs 2)
Higher base frequency (2.2GHz vs 2GHz)
Larger L3 cache size (30MB vs 18MB)
More modern manufacturing process (22nm vs 45nm)
Lower TDP (100W vs 105W)