Intel Xeon E5 2450 v2 's Advantages
Released 3 years and 6 months late
Higher base frequency (2.5GHz vs 1.866GHz)
Larger L3 cache size (20MB vs 12MB)
More modern manufacturing process (22nm vs 32nm)
Intel Xeon L5609 's Advantages
Lower TDP (40W vs 95W)