Increase the Power Limit slider to +5% . This prevents the card from throttling during intense rendering spikes.
When you undervolt, you trim away this excess voltage. Because the chip runs cooler, AMD's Radeon Boost algorithms can maintain higher frequencies for longer durations before hitting thermal throttles. You end up with a card that is quieter, consumes 30 to 50 watts less power, and performs identically to—or better than—stock settings. The Best Baseline Undervolt Settings 6800xt undervolt settings work
The 6800 XT is voltage-limited, not frequency-limited. By lowering the voltage, you reduce the heat density, allowing the GPU to sustain its boost clocks longer without hitting the thermal or power limits. Increase the Power Limit slider to +5%
Play demanding titles like Cyberpunk 2077 , Metro Exodus , or Alan Wake 2 for at least an hour. Ray-tracing titles are excellent for testing undervolt stability. Because the chip runs cooler, AMD's Radeon Boost
Radeon RX 6800 XT users, a stable undervolt "sweet spot" typically ranges 1025 mV and 1100 mV
Don't just copy-paste; every card is unique. Follow these steps in AMD Adrenalin Software :
Overclocking VRAM adds heat to the memory controller. If you undervolt too aggressively (sub 1050mV) AND use Fast Timings at 2150Mhz, you will get "memory correction errors" (lower FPS despite higher clock).