The RX 6400 Mining Settings will generally work for all models, but most of the time you will have some tweaking to do due to your GPU Silicon. Never mine with Stock settings as they will overheat your GPU! You can learn more in our Overclocking For Miners Guide.
RX 6400 Mining Overclocks
Absolute Values are most commonly used in Linux-based Mining OS and they usually give more effeciency, while Offset is more common for Windows. N/A or 0 = leave blank.