Intel Xeon E5 2630L v3 's Advantages
Released 4 years and 6 months late
Higher specification of memory (1866 vs 3)
Newer PCIe version (3 vs 2)
Larger L3 cache size (20MB vs 4MB)
More modern manufacturing process (22nm vs 45nm)
Lower TDP (55W vs 80W)
Intel Xeon E5503 's Advantages
Higher base frequency (2GHz vs 1.8GHz)