Intel Xeon E5 1680 v3 's Advantages
Released 8 months late
Higher specification of memory (2133 vs 1600)
Newer PCIe version (3 vs 2)
Higher base frequency (3.2GHz vs 2.3GHz)
Larger L3 cache size (20MB vs 8MB)
More modern manufacturing process (22nm vs 32nm)
Opteron 6338P 's Advantages
Lower TDP (99W vs 140W)