Hello,
I couldn't find information about the D board VRM, only the UD has reviews and I'm not good at reading the specs of the VRM.
I'm building a 12600k and maybe upgrade later to a 14700k if intel did something about the oxidation and other problems,
If I end up getting a 14700k later, I'll undervolt it for sure.
A comparison on the Gigabyte website
https://www.gigabyte.com/Comparison/Consumer/Result/2?pids=9489,8554
Thanks.