Intel Xeon E3 1220L v3 's Advantages
Higher specification of memory (DDR3-1600 vs DDR3)
Lower TDP (13W vs 47W)
Intel Xeon E3 1258L v4 's Advantages
Released 1 years and 9 months late
Higher base frequency (1.8GHz vs 1.1GHz)
Larger L3 cache size (6MB vs 4MB)
More modern manufacturing process (14nm vs 22nm)