Pentium 1405 V2 's Advantages
Lower TDP (40W vs 185W)
Intel Xeon Gold 6421N 's Advantages
Released 9 years late
Higher specification of memory (4400 vs 1333)
Newer PCIe version (5 vs 3)
Higher base frequency (1.8GHz vs 1.4GHz)
Larger L3 cache size (60MB vs 6MB)
More modern manufacturing process (10nm vs 22nm)