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).
The AMD Radeon RX 6800 XT is a power-efficient GPU by high-end standards, but like most modern cards, it comes from the factory with more voltage than necessary to ensure stability across all silicon lottery outcomes. Undervolting—reducing the core voltage while maintaining or even boosting clock speeds—is a well-known tweak for RDNA2 architecture. But does it actually work on the 6800 XT without crashing games or hurting performance? After extensive testing across multiple models (reference, ASUS TUF, XFX Merc), the answer is a definitive , provided you respect the card’s quirks.
6800xt Undervolt Settings Work -
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).
The AMD Radeon RX 6800 XT is a power-efficient GPU by high-end standards, but like most modern cards, it comes from the factory with more voltage than necessary to ensure stability across all silicon lottery outcomes. Undervolting—reducing the core voltage while maintaining or even boosting clock speeds—is a well-known tweak for RDNA2 architecture. But does it actually work on the 6800 XT without crashing games or hurting performance? After extensive testing across multiple models (reference, ASUS TUF, XFX Merc), the answer is a definitive , provided you respect the card’s quirks.