Intel Xeon L5609 's Advantages
Lower TDP (40W vs 60W)
Intel Xeon E5 1428L v2 's Advantages
Released 3 years and 10 months late
Higher specification of memory (1333 vs 3)
Newer PCIe version (3 vs 2)
Higher base frequency (2.2GHz vs 1.866GHz)
Larger L3 cache size (15MB vs 12MB)
More modern manufacturing process (22nm vs 32nm)