Intel Xeon E5 4660 v3 's Advantages
Released 3 years and 3 months late
Higher specification of memory (2133 vs 3)
Larger L3 cache size (35MB vs 20MB)
More modern manufacturing process (22nm vs 32nm)
Intel Xeon E5 2660 's Advantages
Higher base frequency (2.2GHz vs 2.1GHz)
Lower TDP (95W vs 120W)