Intel Xeon E3 1283L v4 's Advantages
Released 5 years and 4 months late
Higher specification of memory (1866 vs 1066)
Newer PCIe version (3 vs 2)
Higher base frequency (2.9GHz vs 2GHz)
More modern manufacturing process (14nm vs 45nm)
Lower TDP (47W vs 85W)
Xeon EC5509 's Advantages
Larger L3 cache size (8MB vs 6MB)