Always slide this to +15% . This does not force the card to draw more power constantly; it simply raises the ceiling so that when the card needs power during intense rendering spikes, it won't stutter. Combined with an undervolt, the card rarely hits this ceiling anyway.
If you have a well-binned card, this profile maximizes power savings and runs incredibly cool. 2400 MHz Voltage (mV): 1025 mV – 1050 mV Memory Tuning: Fast Timing, 2120 MHz Power Limit: +15% Step-by-Step Guide to Undervolting the 6800 XT
Keep your Max Frequency at the default value (around 2400 MHz) and drop the voltage from 1150mV to 1100mV. Test for stability.
To undervolt, use the under the "Performance" > "Tuning" tab. Recommended Value Voltage 1025 mV – 1075 mV Stock is usually 1150 mV. Try dropping in 25 mV increments. Max Frequency 2300 – 2450 MHz 6800xt undervolt settings work
For those looking for a quick starting point, these settings represent a "safe middle ground" that a vast majority of RX 6800 XT cards can achieve stably using AMD Software: Adrenalin Edition. Safe Conservative Profile (High Stability)
Fast Timing enabled, Max Frequency at 2100 MHz
By manually lowering the voltage, you optimize the card. The RX 6800 XT benefits immensely from this because it is limited by power and thermal limits. Lowering the voltage gives the card thermal headroom. This headroom allows the GPU to maintain its maximum boost clocks longer, often leading to smoother gameplay and fewer micro-stutters. Baseline Undervolt Settings That Work Always slide this to +15%
The baseline stock voltage for a reference RX 6800 XT is . Your goal is to systematically lower this number to find the lowest stable voltage for your specific piece of silicon. Baseline Stable Undervolt Settings for the RX 6800 XT
Undervolting your RX 6800 XT is a win-win endeavor. It produces a cooler, quieter, and more efficient system that often performs just as well, if not better, than its stock configuration. Start with the stable daily driver settings, test for stability in your favorite games, and then decide if you want to push for more performance or ultimate silence. Your exact mileage will depend on your specific card, but the effort is well worth the reward.
The AMD Radeon RX 6800 XT is a powerhouse graphics card, but out of the box, it often draws more power and runs hotter than necessary. Graphics card manufacturers apply a high default voltage to ensure stability across every single chip produced. However, this means your specific card is likely receiving more power than it actually needs to run at peak performance. If you have a well-binned card, this profile
You need a way to verify your settings. Use 3DMark Time Spy , Unigine Heaven , or demanding games like Cyberpunk 2077 or Starfield .
Try lowering it by 10mV more until you find the minimum stable voltage. Crucial Note: Test Both Scenarios
: Run your benchmark again. If it finishes without crashing or visual glitches, drop another 25 mV .