Intel Xeon X5670 's Advantages
Larger L3 cache size (12MB vs 10MB)
Lower TDP (95W vs 140W)
Intel Xeon E5 1607 v3 's Advantages
Released 4 years and 6 months late
Higher specification of memory (1866 vs 3)
Newer PCIe version (3 vs 2)
Higher base frequency (3.1GHz vs 2.933GHz)
More modern manufacturing process (22nm vs 32nm)