Xeon D 2712T 's Advantages
Released 6 years and 11 months late
Higher specification of memory (2667 vs 4)
Newer PCIe version (4 vs 3)
Larger L3 cache size (15MB vs 1.5MB)
More modern manufacturing process (10nm vs 14nm)
Intel Xeon D 1520 's Advantages
Higher base frequency (2.2GHz vs 1.9GHz)
Lower TDP (45W vs 65W)