Intel Xeon W 3175X 's Advantages
Released 8 years and 11 months late
Higher specification of memory (DDR4-2666 vs DDR3)
Newer PCIe version (3 vs 2)
Larger L3 cache size (38.5MB vs 12MB)
More modern manufacturing process (14nm vs 32nm)
Intel Xeon X5680 's Advantages
Higher base frequency (3.333GHz vs 3.1GHz)
Lower TDP (130W vs 255W)