Intel Xeon E5 1680 v2 's Advantages
Higher base frequency (3GHz vs 2.5GHz)
Larger L3 cache size (25MB vs 19.25MB)
Lower TDP (130W vs 140W)
Intel Xeon W 2175 's Advantages
Released 4 years and 1 months late
Higher specification of memory (DDR4-2666 vs DDR3-1866)
More modern manufacturing process (14nm vs 22nm)