Intel Xeon E5 2648L v3 's Advantages
Released 3 years and 5 months late
Higher specification of memory (2133 vs 3)
Larger L3 cache size (30MB vs 8MB)
More modern manufacturing process (22nm vs 32nm)
Lower TDP (75W vs 80W)
Intel Xeon E3 1220 's Advantages
Higher base frequency (3.1GHz vs 1.8GHz)