Intel Xeon E5 1681 v3 's Advantages
Released 1 years and 9 months late
Higher specification of memory (DDR4-2133 vs DDR3)
Newer PCIe version (3 vs 2)
Higher base frequency (2.9GHz vs 2.6GHz)
Larger L3 cache size (25MB vs 8MB)
Opteron 3380 's Advantages
Lower TDP (65W vs 135W)