AMD AMD Navi: Sapphire Radeon RX 5700 XT Nitro and ASRock Taichi designs emerged 3. September 2019 Florian Maislinger 0Custom designs of Radeon Navi are still rare. Now Sapphire teases the Radeon RX 5700 XT Nitro. There are also first pictures of the ASRock Taichi version.