Xeon W 1390 's Advantages
Released 6 years and 2 months late
Higher specification of memory (DDR4-3200 vs DDR3)
Newer PCIe version (4 vs 3)
Higher base frequency (2.8GHz vs 2.2GHz)
Larger L3 cache size (16MB vs 1.5MB)
Intel Xeon D 1518 's Advantages
Lower TDP (35W vs 80W)