Question SeaSonic Focus or S12III

mangaman

Honorable
My current PSU is 4 years old, and I'll most likely be swapping it out with something better once I upgrade my system. My upgraded system will be a Ryzen 5 1600 or 2600, 8GB DDR4, and a R9 270x (I'll later upgrade my GPU to a RX 580 once I get the chance). I was wondering if the SeaSonic focus 550w 80+ Gold would be worth it, or I could go with the less expensive SeaSonic S12III 550w 80+ Bronze. The S12III is only $48 and less expensive, but the Focus Gold is $73 and has a 2 year longer warranty. Do I really need an 80+ Gold, or can I settle with the 80+ Bronze S12III? I know the Focus gold is a very well made unit, but is the S12III also a good unit?