Intel Xeon E5 2690 's Advantages
Higher base frequency (2.9GHz vs 1.8GHz)
Intel Xeon E5 2630L v3 's Advantages
Released 2 years and 6 months late
Higher specification of memory (DDR4-1866 vs DDR3)
More modern manufacturing process (22nm vs 32nm)
Lower TDP (55W vs 135W)