Intel Xeon E5 2689 's Advantages
Higher base frequency (2.6GHz vs 2.2GHz)
Intel Xeon E7 4850 v3 's Advantages
Released 3 years and 3 months late
Higher specification of memory (1866 vs 1600)
Larger L3 cache size (35MB vs 20MB)
More modern manufacturing process (22nm vs 32nm)