Opteron 1389 's Advantages
Higher specification of memory (1333 vs 3)
Higher base frequency (2.9GHz vs 2.2GHz)
Intel Xeon E5 4607 's Advantages
Released 2 years and 11 months late
Newer PCIe version (3 vs 2)
Larger L3 cache size (15MB vs 6MB)
More modern manufacturing process (32nm vs 45nm)
Lower TDP (95W vs 115W)