Intel Xeon E5 2696 v3 's Advantages
Released 4 years and 6 months late
Newer PCIe version (3 vs 2)
Larger L3 cache size (45MB vs 12MB)
More modern manufacturing process (22nm vs 32nm)
Intel Xeon E5620 's Advantages
Higher specification of memory (DDR3 vs DDR3)
Higher base frequency (2.4GHz vs 2.3GHz)
Lower TDP (80W vs 145W)