Intel Xeon W 2155 's Advantages
Higher base frequency (3.3GHz vs 2.4GHz)
Xeon D 2799 's Advantages
Released 4 years and 6 months late
Higher specification of memory (3200 vs 2666)
Newer PCIe version (4 vs 3)
Larger L3 cache size (30MB vs 13.75MB)
More modern manufacturing process (10nm vs 14nm)
Lower TDP (129W vs 140W)