My Vastarmor RX 9070 XT Alloy keeps crashing in Red Dead Redemption 2 at 4K, is it a power issue?

Running this game on a 9070 XT should be a breeze, but getting random crashes in Saint Denis was a complete joke. I found that the core voltage on the Vastarmor RX 9070 XT Alloy was dipping by 0.07V during peak loads, causing a GPU checksum error and a full system crash. I wasted an hour turning off Ambient Occlusion, but that just made the game look ugly without fixing the crashes. I finally went into the driver's advanced settings, capped the power limit at 90%, and switched the power plan from 'Ultimate' to 'Balanced'. I ran an AIDA64 GPU stress test for five hours straight, and it didn't reboot once, with temps sitting at 75-82℃. I actually tried flashing a third-party BIOS first, which bricked the card temporarily until I used the factory recovery tool. Now it's stable at 72-78℃ with fans at 1800 RPM. I've exported the logs, and the crashes are gone.