6800xt Undervolt Settings Work Here

Taming the Beast: Optimal RX 6800 XT Undervolt Settings That Work

The RX 6800 XT is a powerhouse, but it comes with a trade-off: heat and power draw. Out of the box, AMD pushes these cards to their limits, often resulting in fan curves that sound like a jet engine taking off.

1. Go to Performance -> Tuning -> Custom.
2. Enable "Voltage Control".
3. You will see a slider for Voltage (mV).

   Undervolt Settings in Practice

   The Profile (The "Goldilocks" Zone)

   | Setting | Value | Rationale | | :--- | :--- | :--- | | GPU Tuning | Enabled | Unlocks manual control. | | Min Frequency (Mhz) | 2300 | Prevents clock dropping too low. | | Max Frequency (Mhz) | 2450 | Sweet spot for thermal efficiency. | | Voltage (mV) | 1075 | The magic number. (Start here). | | VRAM Tuning | Enabled (Fast Timing) | Free performance. | | VRAM Max Frequency | 2110 Mhz | Stable for 90% of Samsung/ Micron dies. | | Power Limit (%) | +5% or +10% | Gives headroom for voltage dips. | | Fan Tuning | Enabled (Advanced) | 40% baseline, 70% at 80°C. | 6800xt undervolt settings work

   Quieter Operation: Lower heat allows for a less aggressive fan curve, reducing system noise. Taming the Beast: Optimal RX 6800 XT Undervolt