6800xt Undervolt Settings Work Jun 2026

Click on the tab at the top, then select Tuning . Change Tuning Control from Automatic to Custom .

Fans spin slower and quieter due to reduced heat output. 6800xt undervolt settings work

Undervolting your 6800 XT is one of the best ways to get better performance, lower temperatures, and higher efficiency in 2026. By setting your voltage to roughly and managing your fan curves, you can keep this card competitive for years to come. Click on the tab at the top, then select Tuning

| 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 | Undervolting your 6800 XT is one of the

Cooler chips mean your graphics card fans do not need to spin as fast, leading to a much quieter gaming rig. The Baseline Settings for the RX 6800 XT

Before discussing settings, you must understand the enemy: the stock voltage curve. AMD, like NVIDIA, ships its cards with a conservative voltage buffer. For the Navi 21 chip (the heart of the 6800XT), the stock voltage typically sits between .