Intel Xeon E5 1681 v3 's Advantages
Released 2 years and 4 months late
Higher specification of memory (2133 vs 1600)
Newer PCIe version (3 vs 2)
Higher base frequency (2.9GHz vs 2.7GHz)
Larger L3 cache size (25MB vs 8MB)
More modern manufacturing process (22nm vs 32nm)
Lower TDP (135W vs 140W)