Intel Xeon E5 1681 v3 's Advantages
Higher base frequency (2.9GHz vs 2.4GHz)
Larger L3 cache size (25MB vs 8MB)
Intel Xeon E3 1268L v5 's Advantages
Released 1 years and 1 months late
Higher specification of memory (2133 vs 2133)
More modern manufacturing process (14nm vs 22nm)
Lower TDP (35W vs 135W)