Intel Xeon E5 2689 's Advantages
Released 3 years and 9 months late
Higher specification of memory (1600 vs 800)
Newer PCIe version (3 vs 2)
Higher base frequency (2.6GHz vs 2.1GHz)
Larger L3 cache size (20MB vs 2MB)
More modern manufacturing process (32nm vs 65nm)
Opteron 1352 (B2) 's Advantages
Lower TDP (95W vs 115W)