Undervolting Ryzen 9000

Curve Optimizer and Curve Shaper are not the only ways to undervolt your Ryzen CPU. You can also undervolt by lowering the operating temperature.

In this video, I cover three topics related to undervolting Ryzen CPUs:

1) How the Voltage-Frequency-Temperature curve enables undervolting through lower temperatures.
2) How Curve Optimizer works in different operating temperature scenarios.
3) How the Curve Shaper Temperature Points provide us more precise control over our CPU undervolt.

00:00 Intro
00:39 VFT Curve
03:57 Curve Optimizer
07:25 Curve Shaper
11:49 Key Takeaways

Hardware list:
- AGI 512GB NVMe M.2 Gen3

[ryanodneal]

Commenting because you're awesome

[icefire]

Your explanation of curve optimizer in your video from 3 weeks ago was a lifesaver. Thank you so much. I was able to push my 9950x to -24/-26 (CCX0/1) netting 5.4% cinebench performance without raising the power limits or temps. I'm currently 24 hours into a stability test with aida64 and working on a prime95 stability test to validate it's stable.

If you have any advice on stability testing it would be appreciated!
side note: idk why but applying overclock/co settings in ryzen master on my asus x670 creator mobo would cause my pc to not boot until I cleared the CMOS. I assume it's a bug but I had to use the bios for all the tweeking.

[martinmacleod-brown]

Subscribed, I know I don't fully understand everything you are showing me, but I have a 9950X being delivered tomorrow and I will be using your vids to have a play

[artyomexplains]

Does lower temps = higher boost with lover voltages also apply to 7000-8000 ryzen?

[bgtubber]

Thanks for the info. How does that compare to the VFT curve of 7000 series? Is it the same or better? Although I'm not sure we can draw conclusions from just one sample.

[MrEdioss]

This is nightmare to test stability, but can be useful in gaming.

[bosaim]

C'mon YT algorithm, do your thing, i promise it's worth it.

[sturingnico]

You don't think 1.3volt it's too much ??

[manoftherainshorts]

Do you think Curve Shaper can work with Ryzen 7000 CPUs? It seems like it's more of a software feature than a hardware one.

[BaBaNaNaBa]

So you basically need direct die cooler, with peltierelement and liquid metal at ~20°C all the time... noted

[WaterZer]

Did you mean to have "Granite Ridge" on those slides?

[roBrnd]

recently upgraded my Asus x670e Gene bios with my 7800x3D on it and noticed there is now a "Curve Shaper" option. Thought this was Zen 5 exclusive? Any thoughts? Would this help with e-clk overclocking?

[ystrobe]

I’m on a black screen whenever I try to boot up my computer how do I get back to bios

[usmcp]

I can't believe that amd wouldn't have just done this work for us. Why would they leave this much performance on the table for just a few willing to tinker with it? I'm still on zen 3 and stable using a flat .2v under volt. Are they just outsourcing their r and d to enthusiasts?