Intel Xeon E5 2686 v3 's Advantages
Released 5 years late
Higher specification of memory (2133 vs 1333)
Newer PCIe version (3 vs 2)
Larger L3 cache size (45MB vs 8MB)
More modern manufacturing process (22nm vs 45nm)
Xeon X3460 's Advantages
Higher base frequency (2.8GHz vs 2GHz)
Lower TDP (95W vs 120W)