Opteron 1389 's Advantages
Higher specification of memory (1333 vs 3)
Higher base frequency (2.9GHz vs 2.266GHz)
Intel Xeon E5607 's Advantages
Released 1 years and 8 months late
Larger L3 cache size (8MB vs 6MB)
More modern manufacturing process (32nm vs 45nm)
Lower TDP (80W vs 115W)