Intel Xeon E5 1428L v2 's Advantages
Released 1 years and 10 months late
More modern manufacturing process (22nm vs 32nm)
Lower TDP (60W vs 115W)
Intel Xeon E5 2689 's Advantages
Higher specification of memory (1600 vs 1333)
Higher base frequency (2.6GHz vs 2.2GHz)
Larger L3 cache size (20MB vs 15MB)