Intel Xeon E5 2663 v3 's Advantages
Released 3 years and 5 months late
Higher specification of memory (2133 vs 3)
Higher base frequency (2.8GHz vs 2.2GHz)
Larger L3 cache size (25MB vs 3MB)
More modern manufacturing process (22nm vs 32nm)
Intel Xeon E3 1220L 's Advantages
Lower TDP (20W vs 105W)