Xeon E7 2870 's Advantages
Lower TDP (130W vs 225W)
Intel Xeon w7 2475X 's Advantages
Released 11 years and 10 months late
Higher specification of memory (4800 vs 1333)
Higher base frequency (2.6GHz vs 2.4GHz)
Larger L3 cache size (37.5MB vs 30MB)
More modern manufacturing process (10nm vs 32nm)