Intel Xeon W 2140B 's Advantages
Higher base frequency (3.2GHz vs 2.4GHz)
Lower TDP (120W vs 129W)
Xeon D 2799 's Advantages
Released 4 years and 2 months late
Higher specification of memory (3200 vs 2666)
Newer PCIe version (4 vs 3)
Larger L3 cache size (30MB vs 11MB)
More modern manufacturing process (10nm vs 14nm)