I am about to purchase new parts for a new nas setup for a system that will be on 247. Besides functioning as a nas the system will be running some simple python and a php application only used by me, and used for converting video files to mp4. This is the first time I am putting together an AMD system, the system I am going to replace is running an i3-2120. I came across these 3 CPU's that have my interest: Athlon 3000G, Ryzen 3 3200G, and Ryzen 5 3400G.
1. How much power consumption am I going to notice between these 3 CPU's when it comes to my electricity bill?
2. Would there be a noticeable difference between the three CPU's as in performance for the tasks that my system is going to be performing?