Intel Xeon Gold 5420 's Advantages
Released 5 years and 5 months late
Higher specification of memory (4400 vs 2666)
Newer PCIe version (5 vs 3)
Larger L3 cache size (52.5MB vs 8.25MB)
More modern manufacturing process (10nm vs 14nm)
Intel Xeon W 2123 's Advantages
Higher base frequency (3.6GHz vs 2GHz)
Lower TDP (120W vs 205W)