Intel Xeon E5 2450 v2 's Advantages
Released 2 years and 7 months late
Larger L3 cache size (20MB vs 12MB)
More modern manufacturing process (22nm vs 32nm)
Intel Xeon E5649 's Advantages
Higher base frequency (2.533GHz vs 2.5GHz)
Lower TDP (80W vs 95W)