Is this a Radeon RX 6800XT (Navi 21) engineering board ?
AMD Navi 21 GPU Specs | TechPowerUp GPU Database
AMD Radeon RX 6000 "Big Navi" Navi 21 XT & Navi 21 XL GPU Power Figures Detailed - Up To 320W To Match The GeForce RTX 3080
AMD Navi 21 GPU Specs | TechPowerUp GPU Database
AMD is already producing Navi 21 at 7nm+ with the double size of Navi 10
AMD Radeon RX 6900 XT's Big Navi GPU Allegedly Pictured, Massive Die To Battle NVIDIA's Ampere Flagship
AMD says 'Something BIG is coming', likely Radeon Pro with Navi 21 GPU - VideoCardz.com
AMD Navi 21 GPU Specs | TechPowerUp GPU Database
Navi 12, 14, 21, and Lite variants of AMD's latest GPU range revealed in Linux driver code; RX 5800 could take on the GeForce RTX 2080 - NotebookCheck.net News
AMD Radeon RX 6950XT features Navi 21 KXTX GPU, supports Hynix and Samsung 18Gbps memory - VideoCardz.com
Mysterious AMD Radeon RX GPU Based on Navi 21 & 8 GB GDDR6 Memory Spotted
Rumor: AMD's Navi 21 GPU has 255 watts TGP and Boost up-to 2.4 GHz
AMD announces Radeon Pro V620 with Navi 21 GPU and 32GB GDDR6 memory - VideoCardz.com
AMD Radeon RX 6900 XT's Big Navi GPU Allegedly Pictured, Massive Die To Battle NVIDIA's Ampere Flagship
AMD Navi 21 GPU Specs | TechPowerUp GPU Database
Navi 21: AMD's Flagship Radeon RX 6000 Series Die Dwarfs Navi 10 in Alleged Size Comparison - The FPS Review
AMD Navi 21 'Big Navi' GPU Rumored To Be Featured In 16 GB & 12 GB Radeon RX Gaming Graphics Cards : r/AMD_Stock
AMD Navi 21 Lite, Navi 22, and Navi 23 spotted in Linux driver patch, expected to offer tough competition to NVIDIA Ampere - NotebookCheck.net News
AMD Radeon RX 6900 XT specs: Navi 21 GPU with 16GB could cost $499
AMD Navi 21 "Big Navi" GPU stack leaks, budget gamers may have to contend with a Navi 10 Refresh rather than pinning hopes on Navi 23 - NotebookCheck.net News