Intel Xeon E5 1681 v3 's Advantages
Released 2 years and 6 months late
Higher specification of memory (2133 vs 3)
Higher base frequency (2.9GHz vs 2GHz)
Larger L3 cache size (25MB vs 15MB)
More modern manufacturing process (22nm vs 32nm)
Intel Xeon E5 2630L 's Advantages
Lower TDP (60W vs 135W)