Intel Xeon E3 1230 v3 's Advantages
Higher base frequency (3.3GHz vs 3GHz)
Lower TDP (80W vs 140W)
Intel Xeon E5 1660 v3 's Advantages
Released 1 years and 3 months late
Higher specification of memory (DDR4-2133 vs DDR3-1600)
Larger L3 cache size (20MB vs 8MB)