Intel Xeon E5 2666 v3 's Advantages
Released 6 years and 2 months late
Higher specification of memory (2133 vs 667)
Higher base frequency (2.9GHz vs 2.133GHz)
Larger L3 cache size (25MB vs 12MB)
More modern manufacturing process (22nm vs 45nm)
Xeon L7450 's Advantages
Lower TDP (65W vs 135W)