Intel Xeon L5609 's Advantages
Lower TDP (40W vs 115W)
Intel Xeon E7 8880L v3 '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 (2GHz vs 1.866GHz)
Larger L3 cache size (45MB vs 12MB)
More modern manufacturing process (22nm vs 32nm)