Opteron A1120 's Advantages
Released 3 years and 2 months late
Newer PCIe version (3 vs 2)
More modern manufacturing process (28nm vs 32nm)
Lower TDP (25W vs 115W)
Opteron 6378 's Advantages
Higher specification of memory (1866 vs 1866)
Higher base frequency (2.4GHz vs 1.7GHz)