Intel Xeon D 1571 's Advantages
Released 4 years and 10 months late
Higher specification of memory (4 vs 3)
More modern manufacturing process (14nm vs 32nm)
Lower TDP (45W vs 130W)
Intel Xeon E7 8870 's Advantages
Higher base frequency (2.4GHz vs 1.3GHz)
Larger L3 cache size (30MB vs 1.5MB)