Intel Xeon E3 1220L v3 's Advantages
Lower TDP (13W vs 80W)
Intel Xeon E3 1275 v5 's Advantages
Released 2 years and 1 months late
Higher specification of memory (2133 vs 1600)
Higher base frequency (3.6GHz vs 1.1GHz)
Larger L3 cache size (8MB vs 4MB)
More modern manufacturing process (14nm vs 22nm)