Intel Xeon E5 2648L v3 's Advantages
Released 6 years and 10 months late
Higher specification of memory (2133 vs 3)
Newer PCIe version (3 vs 2)
More modern manufacturing process (22nm vs 45nm)
Lower TDP (75W vs 80W)
Xeon E5462 's Advantages
Higher base frequency (2.8GHz vs 1.8GHz)