https://wccftech.com/powercolor-fastest-radeon-rx-6900-xt-red-devil-ultimate-graphics-card-big-navi-21-xtxh-gpu/

PowerColor has just shipped out its very first review units of the Radeon RX 6900 XT Red Devil Ultimate graphics card which features the fastest clock speeds ever for the Big Navi GPU. The Radeon RX 6900 XT Red Devil Ultimate is a brand new custom graphics card from PowerColor which will be offering a higher-binned Big Navi GPU.

While the PowerColor Radeon RX 6000 Red Devil series was initially introduced last year, it looks like the company has now got its hands on higher-binned GPUs from AMD. Overclocking.com was able to discover that the card features the new Navi 21 XTXH GPU SKU which is a variant of the Big Navi GPU featuring the highest bin possible. This chip is featured on the Radeon RX 6900 XT Red Devil Ultimate which will be a premium and enthusiast card designed for overclockers.