Intel Xeon E5 1680 v2 's Advantages
Higher base frequency (3GHz vs 2.4GHz)
Larger L3 cache size (25MB vs 8MB)
Intel Xeon E3 1268L v5 's Advantages
Released 2 years and 1 months late
Higher specification of memory (2133 vs 1866)
More modern manufacturing process (14nm vs 22nm)
Lower TDP (35W vs 130W)