Navi 21 XTXH varient spotted
Powercolor, an AMD GPU card AIB vendor, recently quietly releases a new card model for it's 6900XT in the name of [Radeon RX 6900 XT Red Devil Ultimate].
When using GPU-Z to verify it's card technical spec it is shown as a completely new Device ID and Info and no information matches existing hardwares.
It is determined that AMD might have quietly rolled out a special binned Navi 21 XTX that could potentially have even better overclocking capabilities.
https://www.techpowerup.com/280944/powercolor-quietly-outs-radeon-rx-6900-xt-red-devil-ultimate