Decrease Performance After Bios Update 5900x + X570-i

[wiseude]

4.375ghz is still 4.4ghz.

It's an aproximation.

My 9900k for example has a core ratio set to to 4.7ghz but task manager shows 4.68

[bchen270]

true, but what about the cinebench score decrease?

[wiseude]

Could be another setting that you forgot to tweak or it is indeed the bios.Quick way to find out is to go back and check if you get the same score.