Hudzy

I will possibly be building an unraid server soon, but just need some reassurance on the CPU choice. The server will exist to share large 4K and 1080p video files to an nVidia Shield running Kodi. It will not transcode as currently Kodi accesses these files from an SMB share on a desktop and there are no playback issues on a 4K TV. It will likely need to be able to serve files to up to three users simultaneously, but I don't think this should change the processing requirement significantly? I don't imagine it would ever need to run VMs. Am I right that as the server is just sharing video, it doesn't need an i3 or greater, and a Celeron or Pentium would suffice? Does the CPU choice affect anything else I've missed? I am considering a G4900, or maybe a G5400 if hyperthreading would be worth having on a dual core. Bonus question, how much memory should this server need? Does unraid require a ratio of memory to disk capacity? I need to be budget conscious, but will spend more if it's needed.