AMD Socket AM4 bios settings

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[Slender]

Thank you

[kokkatc]

What's your goal, highest frequency or lowest latency? Disabling C-States will always yield lower system latency which results in a snappier and more responsive mouse. This can be confirmed with latency monitor. Even if your power plan is set to high/ultimate/bitsum with USB select suspend disabled, CPU max/min 100%, pci power savings disabled, latency will be higher with C-States enabled in the bios.

So if you want lower latency for say a competitive fps game, you want C-States disabled.

In the link you posted: https://developer.amd.com/wp-content/re ... 5_0.75.pdf

Go to section 2.14. It states even there for a low latency workload, you should disable C-States for higher performance. When switching between sleep and full power mode there will always be delay and jitter.

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[Tell]

Can you share your reasoning for these settings? Why SOC P-State P1 instead of P0? Was there problems with the highest performance P0?

What did you gain by forcing HPET? That change seems very strange.

[kokkatc]

Just trying to help. You're welcome.

I wanted to apologize if my post came out rude. Awesome thread you started with great info. I just wanted to comment on C-States since you mentioned you left it on auto. Hoping this thread provides a lot of good info for Ryzen builds looking to optimize their bios.

[kokkatc]

Can you share your reasoning for these settings? Why SOC P-State P1 instead of P0? Was there problems with the highest performance P0?

What did you gain by forcing HPET? That change seems very strange.

Great questions. I'd love to hear your explanation for using these settings as well, especially where you decided to enable hpet which is very strange indeed.

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[Tuhin Lavania]

I tried some of the OP settings and they seem to have an effect on the input lag i was facing in Halo Infinite. I have playd around 20 matches to come to this conclusion.

I will add to this. I have a 5950x and putting Core levelling mode to 4 and on one CCD really decreases a lot of latency. So basically i have 12 cores disabled and i play on 4 cores on a 5950X.

[Slender]

I tried some of the OP settings and they seem to have an effect on the input lag i was facing in Halo Infinite. I have playd around 20 matches to come to this conclusion.

I will add to this. I have a 5950x and putting Core levelling mode to 4 and on one CCD really decreases a lot of latency. So basically i have 12 cores disabled and i play on 4 cores on a 5950X.

???
5950x have 8+8 ccd, just disable 1ccd and give like 5800x.
lol