Intel Xeon E5 2450 v2 's Advantages
Released 2 years and 7 months late
Higher base frequency (2.5GHz vs 2.133GHz)
Larger L3 cache size (20MB vs 12MB)
More modern manufacturing process (22nm vs 32nm)
Xeon L5639 's Advantages
Higher specification of memory (1333 vs 3)
Lower TDP (60W vs 95W)