Intel Xeon E7 4850 v3 's Advantages
Released 4 years and 4 months late
Higher specification of memory (1866 vs 3)
Newer PCIe version (3 vs 2)
Larger L3 cache size (35MB vs 12MB)
More modern manufacturing process (22nm vs 32nm)
Lower TDP (115W vs 130W)
Intel Xeon X5647 's Advantages
Higher base frequency (2.933GHz vs 2.2GHz)