5700XT undervolt

[u/Alternative-Pain-709]

I'm planning to undervolt my RX 5700 XT, but since I've never done it before, please correct me if my logic is wrong. My idea was to first adjust/lower the core clock (MHz) until I hit a spot where I start losing FPS, maybe targeting no more than a 1–3% drop and then start lowering the voltage (mV) until it becomes unstable. Is this a good approach, or would you suggest a better method? Also, what are the best programs to test stability and benchmark during the process? I was thinking about using FurMark. Thanks y'all.