Intel Xeon E5 2686 v3 's Advantages
Released 4 years and 6 months late
Newer PCIe version (3 vs 2)
Higher base frequency (2GHz vs 1.9GHz)
Larger L3 cache size (45MB vs 12MB)
Opteron 6168 's Advantages
Higher specification of memory (DDR3 vs DDR3)
Lower TDP (115W vs 120W)