Intel Xeon L5609 's Advantages
Larger L3 cache size (12MB vs 6MB)
Lower TDP (40W vs 47W)
Intel Xeon E3 1283L v4 's Advantages
Released 5 years and 3 months late
Higher specification of memory (1866 vs 3)
Newer PCIe version (3 vs 2)
Higher base frequency (2.9GHz vs 1.866GHz)
More modern manufacturing process (14nm vs 32nm)