Currently, AMD Radeon RX 6900 XT & RX 6800 XT & RX 6800 graphics cards are still out of stock everywhere. According to an interview with BabelTechReviews, AMD’s Riche Corpus, who is Senior Director at Radeon Technologies Group, has confirmed that AMD is now expecting additional reference RX 6000 cards to be available in the first quarter.
From AMD Riche Corpus:
Based on the response to our AMD Radeon RX 6800 Series and Radeon RX 6900 XT reference design graphics cards, we are extending production to make them available to as many gamers as possible on AMD.com at SEP. Additional reference cards are expected to be available in the first quarter of 2021. We will also continue supporting our partners in the development of their custom AMD Radeon™ RX 6000 Series graphics card designs.
— AMD’s Ritche Corpus – Sr. Director, ISV SW Alliances, Radeon Technologies Group