Does anyone know what the amperage requirements are for an RX 580? I seem to be having trouble finding an actual answer. I'm building a Ryzen 5 gaming box for my nephew, and I have a SeaSonic M12II 620 watt psu that I bought awhile back. I was wondering if it would be enough. Here's a link to the PSU- https://www.newegg.com/Product/Product.aspx?Item=N82E16817151095 It's a lower end SeaSonic, but since I have it I was hoping I could use it for his build.