Intel Xeon E3 1220L v2 's Advantages
Released 2 years and 2 months late
Newer PCIe version (3 vs 2)
Higher base frequency (2.3GHz vs 1.866GHz)
More modern manufacturing process (22nm vs 32nm)
Lower TDP (17W vs 40W)
Intel Xeon L5609 's Advantages
Larger L3 cache size (12MB vs 8MB)