There should be a DDR4 speed FAQ
3200 is the fastest official DDR4 speed, regardless of CPU. It isn't the 5600X topping out at 3200, that's just a DDR4 spec thing. 3600 rated memory will happily run at that speed when set in the BIOS to do so. Strictly speaking it's considered overclocking, but the manufacturer of those modules has tested them to 3600, so they'lll work, no problem.
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