Xeon E 2124 's Advantages
Higher base frequency (3.3GHz vs 2.8GHz)
Lower TDP (71W vs 80W)
Xeon W 1390 's Advantages
Released 2 years and 10 months late
Higher specification of memory (3200 vs 2666)
Newer PCIe version (4 vs 3)
Larger L3 cache size (16MB vs 8MB)