Intel Xeon E5 4660 v3 's Advantages
Released 1 years and 9 months late
Higher specification of memory (2133 vs 3)
Larger L3 cache size (35MB vs 10MB)
Intel Xeon E5 2609 v2 's Advantages
Higher base frequency (2.5GHz vs 2.1GHz)
Lower TDP (80W vs 120W)