How to fix Sapphire RX 9070 XT crashes in Frostpunk 2?

The framerate was bouncing between 60 and 20 FPS, which is absolutely brutal for a city builder. After digging into the logs, I found that the 16GB VRAM on the Sapphire RX 9070 XT was hitting address conflicts in the shader cache when rendering dense buildings, causing VRAM usage to swing violently between 14.2 - 15.8GB. I tried bumping my virtual memory to 64GB, but the random crashes kept happening, and it felt like I was just fighting a losing battle. I ended up using DDU in Safe Mode for a complete driver wipe and installed the latest WHQL stable build, then manually nuked 8.4GB of old shader cache files. In GPU-Z, the memory clock stopped dipping, and the crashes completely vanished. Just a warning: the first launch took an extra 3 minutes while shaders recompiled. Core temps stayed at 62 - 68℃ and VRAM at 75 - 81℃. OCCT memory test showed zero errors. Driver fix worked.
Category:Troubleshooting Last updated:February 15, 2026 12:47 PM