PowerColor uses special bin Navi 21 XTXH in latest graphics card - Graphics - News - HEXUS.net
AMD Navi XTXH, XLE, and Nashira Point variants spotted on USB-IF: XTXH could be a possible Navi 21 variant with HBM2(E) support - NotebookCheck.net News
AMD is already producing Navi 21 at 7nm+ with the double size of Navi 10
Here's Big Navi in the flesh, Navi 21 GPU powers Radeon RX 6900 XT
AMD Navi 21 GPU Specs | TechPowerUp GPU Database
AMD Navi 21 will have 80 CUs combined with RDNA 2 and hardware ray tracing
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
Is this a Radeon RX 6800XT (Navi 21) engineering board ?
AMD Reveals Radeon RX 7900 XTX and 7900 XT: First RDNA 3 Parts To Hit Shelves in December