Xeon D 2899NT 's Advantages
Released 6 years and 4 months late
Higher specification of memory (3200 vs 2666)
Newer PCIe version (4 vs 3)
Larger L3 cache size (30MB vs 8.25MB)
More modern manufacturing process (10nm vs 14nm)
Intel Xeon W 2123 's Advantages
Higher base frequency (3.6GHz vs 2.2GHz)
Lower TDP (120W vs 135W)