Need assistance with the AM5 curve optimizer?
Need assistance with the AM5 curve optimizer?
I’ve seen many AMD forums suggesting this method. To boost my new 7800X3D, I tried enabling PBO with a negative offset through the curve optimizer—since it’s my first time. I was wondering if someone could point me to a trustworthy tutorial that explains each step clearly? From what I know, starting the offset in BIOS also requires checking stability in Windows and running stress tests to confirm the CPU can handle the maximum negative offset you’re aiming for.
I followed this tutorial myself; observed a 15°C drop and a 250MHz increase during testing. If it failed, I’d have stopped at -25 rather than -30.
Realize (and I've had a 7900x and now a 7800x3D) that with this x3D chip you won't really see any changes in everyday life. This is mainly for fun. If you're into tinkering and enjoy the process, it's ideal. For those just wanting a reliable machine to play games on, stick with the stock setup. There are two approaches. One involves using a long, detailed method of per-core Curve Optimizer—starting from a baseline like -30 across all cores, then cycling through Windows to identify problematic cores and tweak them. This can take hours and requires dedication. Bring a notepad and snacks; it'll be a lengthy session. It took me most of a weekend to achieve this. The other common approach is simply applying the same -30 setting and letting the PC run as usual. If you notice issues like idle load lockups or random crashes, lower it to -25 and continue adjusting until stability returns. My 7800x3D doesn't handle -30 well—it usually stays around -20 across all cores. That's a clear difference... but that's fine.
As @GuiltySpark_ mentioned, testing a 3D chip mainly serves to showcase a slightly improved Cinebench rating. In short, PBO/CO lets you adjust voltage and clock curve so you can achieve higher clock speeds at the same voltage with less power, or lower voltage for the same speed. However, 3D chips are constrained by both clock and power limits, plus thermal issues—cores get much hotter under load. Adjusting these parameters only marginally improves temperatures, which doesn’t matter much for gaming or light tasks. The real benefit is a slight boost in overall clock performance when power is restricted, around a small percentage increase, maybe up to 4%.
PDifolco is adjusting things to keep temps down without sacrificing speed. I'm using a 360mm cooler with the Master ML360R AIO, paired with an AIDA64 CPU featuring FPU and cache. After 20 minutes of stress testing, it hit a peak of 77°C. I think applying Curve Optimizer could help reduce heat while improving performance.
Thanks for the feedback! I appreciate the suggestion to check it out. If you have any questions, feel free to message me. Also, could you let me know which motherboard and CPU you used in this video or guide?
I was advised that the curve optimizer could reduce temperatures during heavy workloads on my 7800X3D with an AIDA64 CPU and cache stress test. On a 360mm AIO using mx-a paste, it reaches 77°C, but I was hoping to bring down the heat even more. My 3900X already hits 60°C under full load, so I’m keen to keep things cooler.
77c is well within safe limits for Ryzen 7000/ X3D CPU's and this is nothing to be concerned about, especially during such a heavy synthetic stresstest as AIDA64. Ryzen 7000 run hot by design and high temperatures are nothing to worry about. You can't compare Ryzen 3000 and Ryzen 7000 as they are massively different in architecture and how they operate. Ryzen 7000 as a setpoint of 95c BEFORE limiting clocks or power. They are actually designed to hit 95c and stay there. My 7700x hits 90c on a regular basis but this is completely normal for my CPU.