Intel Xeon E3 1558L v5 's Advantages
Released 2 years and 4 months late
Higher specification of memory (2133 vs 1333)
More modern manufacturing process (14nm vs 22nm)
Lower TDP (45W vs 60W)
Intel Xeon E5 1428L v2 's Advantages
Higher base frequency (2.2GHz vs 1.9GHz)
Larger L3 cache size (15MB vs 8MB)