Opteron 6320 's Advantages
Higher specification of memory (1866 vs 4)
Intel Xeon E3 1285 v6 's Advantages
Released 4 years and 9 months late
Newer PCIe version (3 vs 2)
Higher base frequency (4.1GHz vs 2.8GHz)
More modern manufacturing process (14nm vs 32nm)
Lower TDP (79W vs 115W)