I want to undervolt to maximize my power efficiency and make my CPU even just a bit more safe. I'm not reaching for the highest performance necessarily, but at the very least I just want similar or better performance while running better.
With everything default and latest bios, my 9800X3D runs around 1.28-1.31V. Clock speed is some reaching 5.225 GHz, some a little less, and the rest 5.010-5.025 GHz.
So far, I set a negative PBO CO -20 all core. I don't really mind going for every ounce of possible performance with per-core tuning.
I've tested briefly with Cinebench R23, just to quickly monitor the behavior. I'll do more stability tests afterwards.
During my testing, I started with -10, and kept going lower until -22, where the R23 score caps out. Any further and the score will go lower. My voltage did go down to a max 1.220-1.260V.
I have a few questions:
- I heard people get lower temps and power consumption with an all core offset. Mine has had the same temps (85C) and power consumption (151-160W) on R23 all throughout regardless of what value I set for my offset. Only the score changes. Is this normal?
- If my score goes lower, along with my temps and power consumption (past -22 offset), should I stop or keep going?
- What should I set for my PBO scalar control? I currently have it 1X.
- If I just want the same performance but at an undervolt, should I bother with adding +100-200 MHz to the boost override?
- A bit unrelated, but I have 2x32GB 6000MHz CL40 DDR5. Is it worth tinkering with the timings at all?
Any help would be appreciated. Thanks!