Is this a Radeon RX 6800XT (Navi 21) engineering board ?
Possible AMD mining card with Navi 21 GPU spotted | TechSpot
AMD Navi 21 GPU Specs | TechPowerUp GPU Database
AMD Navi 21 GPU Specs | TechPowerUp GPU Database
AMD Navi 21, 22 and 23 Massive Technical Specifications Leak - Flagship Navi 21 GPU To Have 80 CUs
AMD Navi 2x: detailed list of specs, expected pricing and possible release dates for the entire GPU lineup get leaked - NotebookCheck.net News
AMD Radeon RX 6900 XT's Big Navi GPU Allegedly Pictured, Massive Die To Battle NVIDIA's Ampere Flagship
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
AMD Radeon Pro with Navi 21 GLXL GPU
AMD Navi 21 GPU to sport a maximum of 80 CUs - Graphics - News - HEXUS.net
AMD's RX 5600 XT to be built from the massive Navi 21 GPU? | PCGamesN
AMD Radeon RX 6950XT features Navi 21 KXTX GPU, supports Hynix and Samsung 18Gbps memory - VideoCardz.com
Rumor: AMD's Navi 21 GPU has 255 watts TGP and Boost up-to 2.4 GHz
A Leaked AMD Radeon RX 6000 Navi 21 GPU With 8GB GDDR6 Has Us Puzzled | HotHardware
AMD Radeon RX 6000 Big Navi 21 Series Specs Leak Hints At Monster Performance | HotHardware
AMD announces Radeon Pro V620 with Navi 21 GPU and 32GB GDDR6 memory - VideoCardz.com
AMD Navi 2x, Navi 21 & Navi 31 Leak: Apple reveals many specs in the latest macOS 11 beta version - Task Boot