Should I tweak PBO for 9950X3D power limits in Ratchet & Clank?

Man, this CPU is an absolute beast, but it runs hot as hell. During jumps, my FPS would tank from 144 down to 60 instantly—I seriously thought my GPU was dying. The 3D V-Cache on the 9950X3D traps heat, and under full load, the clocks were bouncing wildly between 5.2GHz and 4.1GHz, which just makes the game engine wait. I tried dropping all the graphics settings to low, but I only gained maybe 2 FPS; that was just me kidding myself at that point. I finally went into the BIOS, set the PBO curve to Negative 20, and capped the PPT at 170W while cranking the cooling to max. Monitoring with GPU-Z, the core clocks finally settled around 5.0GHz, and the frame drops are way less frequent. I actually tried capping the power at 140W first, but then the FPS dropped too much and the scene loading got sluggish, so 170W is the sweet spot. Temps are staying between 72-78℃, and it's incredibly stable. I exported the voltage curve from the stress test logs, and the load data is now backed up.
Category:Performance Evaluation Last updated:March 20, 2026 11:34 AM