Intel Xeon E5 2608L v3 's Advantages
Released 6 years and 10 months late
Higher specification of memory (1866 vs 3)
Newer PCIe version (3 vs 2)
More modern manufacturing process (22nm vs 45nm)
Lower TDP (52W vs 80W)
Xeon E5420 's Advantages
Higher base frequency (2.5GHz vs 2GHz)