Intel Xeon E5 1680 v2 's Advantages
Released 2 years and 7 months late
Higher specification of memory (1866 vs 3)
Newer PCIe version (3 vs 2)
Larger L3 cache size (25MB vs 12MB)
More modern manufacturing process (22nm vs 32nm)
Intel Xeon X5690 's Advantages
Higher base frequency (3.466GHz vs 3GHz)