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TL;DR: Your GPU does not fulfill the minimum requirements for running Blender 2.8x or later. "Turks" is part of the codename of multiple GPUs that have the TeraScale 2 micro-architecture: Radeon HD 6570 (Turks Pro) Radeon HD 6570 (Turks Pro) Radeon HD 6670 (Turks XT) Radeon HD 7510 (Turks LE) Radeon HD 7570 (Turks Pro-L) Radeon HD 7670 (Turks XT) ...


Yes, the 20.Q3.1 works with Blender 2.83.3 and 2.9.1, but not reliable with other applications. The RX 5700 XT is NOT on compatible list. So the Enterprise Driver is just a stopgap measure so that you can keep on working with Blender and NOT the solution.


I switched the NVidia drivers to 440.100 (from the backports repository) and Optix now seems to work. 👍

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