Opteron 6276 's Advantages
Higher base frequency (2.3GHz vs 2.1GHz)
Intel Xeon E3 1240L v5 's Advantages
Released 3 years and 11 months late
Higher specification of memory (2133 vs 3)
Newer PCIe version (3 vs 2)
More modern manufacturing process (14nm vs 32nm)
Lower TDP (25W vs 115W)