Intel Xeon E5 1681 v3 's Advantages
Released 5 years and 5 months late
Higher specification of memory (2133 vs 1333)
Newer PCIe version (3 vs 2)
Higher base frequency (2.9GHz vs 2.4GHz)
Larger L3 cache size (25MB vs 6MB)
More modern manufacturing process (22nm vs 45nm)
Opteron 13QS HE 's Advantages
Lower TDP (71W vs 135W)