6800xt Undervolt Settings Work Fixed -

| Symptom | Likely Cause | Fix | |---------|--------------|-----| | Driver timeout (black screen) | Voltage too low | Increase by 10–15 mV | | Artifacts / flickering | Unstable core or VRAM | Reduce VRAM clock or raise voltage | | Lower than expected performance | Clock stretching (throttling) | Raise voltage slightly (e.g., 1025 → 1040 mV) | | Crash only in Ray Tracing | Higher voltage needed for RT workloads | Use separate profile or add +20 mV |

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For the majority of RX 6800 XTs, the following ranges deliver consistent, game-stable results using : 6800xt undervolt settings work

At 1025mV, you are likely looking at a 15-20°C drop in junction temperature (hotspot) and wattage dropping from ~300W to ~250W under load, all while maintaining the same framerate. | Symptom | Likely Cause | Fix |