https://wccftech.com/amd-radeon-rx-6900-xt-flagship-big-navi-graphics-card-features-3-0-ghz-max-clocks/

AMD's Radeon RX 6900 XT, the flagship Big Navi GPU based graphics card, launches next month & is expected to compete against the GeForce RTX 3090. Twitter fellow, Patrick Schur, managed to get access to the BIOS of the reference AMD Radeon RX 6900 XT which reveals a higher max frequency than the RX 6800 XT.

The BIOS was accessed and its specifics were listed within the MorePowerTool which lists down various parameters such as clocks, the power limit, and fan speeds. The AMD Radeon RX 6900 XT seems to feature the same fan profiles and power limits as the RX 6800 XT however, the minimum power limit is raised from 6% to 10%.