Intel Xeon D 1531 's Advantages
Lower TDP (35W vs 165W)
Intel Xeon w3 2435 's Advantages
Released 7 years and 3 months late
Higher specification of memory (DDR5-4400 vs DDR3)
Newer PCIe version (5 vs 3)
Higher base frequency (3.1GHz vs 2.2GHz)
Larger L3 cache size (22.5MB vs 1.5MB)
More modern manufacturing process (10nm vs 14nm)