Xeon EC5509 's Advantages
Higher base frequency (2GHz vs 1.8GHz)
Intel Xeon E5 2630L v3 's Advantages
Released 4 years and 7 months late
Higher specification of memory (1866 vs 1066)
Newer PCIe version (3 vs 2)
Larger L3 cache size (20MB vs 8MB)
More modern manufacturing process (22nm vs 45nm)
Lower TDP (55W vs 85W)