Intel Xeon X5675 's Advantages
Lower TDP (95W vs 140W)
Intel Xeon E5 1680 v3 's Advantages
Released 3 years and 7 months late
Higher specification of memory (2133 vs 3)
Newer PCIe version (3 vs 2)
Higher base frequency (3.2GHz vs 3.066GHz)
Larger L3 cache size (20MB vs 12MB)
More modern manufacturing process (22nm vs 32nm)