Undervolting breaks this cycle. By feeding the chip only the voltage it actually needs (often 1.050V to 1.100V), you lower temperatures by 10-15°C. Lower temperatures allow the GPU to maintain its maximum boost clock for longer periods.
At this voltage, the card draws around 300W to 330W under full load. This generates significant heat. When the GPU hits 85°C or higher (or a Junction/Hotspot temp of 105°C+), the boost algorithm panics. It starts dropping clocks aggressively to save the silicon. 6800xt undervolt settings work
Why does performance go up with less voltage? Lower voltage reduces thermal throttling and allows the boost algorithm to sustain higher clocks for longer. Undervolting breaks this cycle