Intel Xeon E5620 's Advantages
Higher base frequency (2.4GHz vs 1.8GHz)
Intel Xeon E5 2630L v3 's Advantages
Released 4 years and 6 months late
Higher specification of memory (DDR4-1866 vs DDR3)
Newer PCIe version (3 vs 2)
Larger L3 cache size (20MB vs 12MB)
More modern manufacturing process (22nm vs 32nm)
Lower TDP (55W vs 80W)