Intel Xeon X5687 's Advantages
Higher base frequency (3.6GHz vs 2GHz)
Larger L3 cache size (12MB vs 8MB)
Opteron A1170 's Advantages
Released 4 years and 11 months late
Higher specification of memory (1866 vs 3)
Newer PCIe version (3 vs 2)
More modern manufacturing process (28nm vs 32nm)
Lower TDP (32W vs 130W)