Intel Xeon E3 1220L 's Advantages
Lower TDP (20W vs 45W)
Intel Xeon E3 1545M v5 's Advantages
Released 4 years and 9 months late
Higher specification of memory (2133 vs 3)
Higher base frequency (2.9GHz vs 2.2GHz)
Larger L3 cache size (8MB vs 3MB)
More modern manufacturing process (14nm vs 32nm)