I have a Ryzen 1700, it is blazing fast, and I have no problems with UE4. The main reason I choose Ryzen is because you have twice more speed for the same price and that’s because Intel sells its s*itty GPU included with all its CPU that you won’t need if you have a desktop computer.
Ryzen is great and I have a Gaming Gigabyte Motherboard that is doing great too AX370-GAMING k3
I am doing 60 FPS no matter what with the editor (that’s the max speed from my monitor).