Intel Xeon D 1531 's Advantages
Higher base frequency (2.2GHz vs 2.1GHz)
Lower TDP (35W vs 125W)
Xeon D 2798NT 's Advantages
Released 6 years and 3 months late
Higher specification of memory (3200 vs 4)
Newer PCIe version (4 vs 3)
Larger L3 cache size (30MB vs 1.5MB)
More modern manufacturing process (10nm vs 14nm)