Xeon E7 2870 's Advantages
Higher base frequency (2.4GHz vs 1.9GHz)
Larger L3 cache size (30MB vs 15MB)
Xeon D 2712T 's Advantages
Released 10 years and 10 months late
Higher specification of memory (2667 vs 1333)
More modern manufacturing process (10nm vs 32nm)
Lower TDP (65W vs 130W)