Xeon E5405 's Advantages
Lower TDP (80W vs 100W)
Intel Xeon E5 2692 v2 's Advantages
Released 5 years and 10 months late
Higher specification of memory (3 vs 3)
Newer PCIe version (3 vs 2)
Higher base frequency (2.2GHz vs 2GHz)
More modern manufacturing process (22nm vs 45nm)