Xeon E 2104G 's Advantages
Higher base frequency (3.2GHz vs 2GHz)
Lower TDP (65W vs 205W)
Intel Xeon Gold 5420 's Advantages
Released 4 years and 6 months late
Higher specification of memory (4400 vs 2666)
Newer PCIe version (5 vs 3)
Larger L3 cache size (52.5MB vs 8MB)
More modern manufacturing process (10nm vs 14nm)