Opteron 6376 's Advantages
Higher base frequency (2.3GHz vs 1.7GHz)
Opteron A1120 's Advantages
Released 3 years and 2 months late
Higher specification of memory (1866 vs 1866)
Newer PCIe version (3 vs 2)
More modern manufacturing process (28nm vs 32nm)
Lower TDP (25W vs 115W)