Intel Xeon E5620 's Advantages
Higher base frequency (2.4GHz vs 1.9GHz)
Lower TDP (80W vs 95W)
Intel Xeon E5 2440 v2 's Advantages
Released 3 years and 6 months late
Larger L3 cache size (20MB vs 12MB)
More modern manufacturing process (22nm vs 32nm)