Intel Xeon E3 1220L v2 's Advantages
Higher base frequency (2.3GHz vs 1.8GHz)
Larger L3 cache size (8MB vs 6MB)
Lower TDP (17W vs 47W)
Intel Xeon E3 1258L v4 's Advantages
Released 3 years and 1 months late
More modern manufacturing process (14nm vs 22nm)