Intel Xeon E3 1225 's Advantages
Higher base frequency (3.1GHz vs 1.7GHz)
Opteron A1120 's Advantages
Released 4 years and 9 months late
Higher specification of memory (1866 vs 3)
Larger L3 cache size (8MB vs 6MB)
More modern manufacturing process (28nm vs 32nm)
Lower TDP (25W vs 95W)