Intel Xeon E5 1680 v2 's Advantages
Higher base frequency (3GHz vs 2.3GHz)
Intel Xeon E5 2669 v3 's Advantages
Released 1 years and 4 months late
Higher specification of memory (2133 vs 1866)
Larger L3 cache size (30MB vs 25MB)
Lower TDP (120W vs 130W)