Ryzen 3. The architecture is Zen 2.My understanding is that the top tier Ryzen 2 CPUs will need the extra cooling of the built-in chipset fans that the X570 boards will possess. And if you are overclocking on top of that, thee is no question about it.
nuclearrabbit17, what is your budget anyway? Will you be carrying over components from your present system such as case, video card, drives and PSU? Please make a list of components you already have that might carry over.
The chipset fans are supposed to only spin up under heavier loads from what I have heard. If the chipset isn't loaded up with devices, it should stay quiet from what I understand.