Xeon E7 4807 's Advantages
Lower TDP (95W vs 140W)
Intel Xeon W 2170B 's Advantages
Released 6 years and 8 months late
Higher specification of memory (2666 vs 1333)
Higher base frequency (2.5GHz vs 1.866GHz)
Larger L3 cache size (19.25MB vs 18MB)
More modern manufacturing process (14nm vs 32nm)