Intel Xeon E5 2620 v2 's Advantages
Newer PCIe version (3 vs 2)
Larger L3 cache size (15MB vs 8MB)
More modern manufacturing process (22nm vs 32nm)
Lower TDP (80W vs 99W)
Opteron 6338P 's Advantages
Higher specification of memory (1600 vs 3)
Higher base frequency (2.3GHz vs 2.1GHz)