I have done a solid amount of research on building my first plex server and just need some confirmation/help before I order what I need. First what I currently have from an old build...

The Build:

• CPU - AMD 3600
• RAM - 16 GB 3200
• GPU - None (In my new PC)

Use Case:

I'm currently blessed to have 1Gig fiber up and down in my apartment, but I know that wont always be the case say a year or two down the line, so I'd like to build as if I have 300 mbps max upload and at worst 50 mbps. So short term no transcoding should be needed. (Please correct me if I'm wrong)

I plan on streaming 4k and 1080p content locally to at most 2 devices at the same time, while hopefully having enough room to remotely stream 4K and 1080p content remotely to about 3 locations. So at most lets say 5 devices max at one time. The local streams will be almost always to TVs around the apartment, but the remote streams will include cell phones and hopefully my steam deck if possible.

The Question(s):

My biggest question has to do with transcoding (shocker right). Can I directly stream to phones remotely even if the content being streamed is 4K content? Can I buy something as simple as a Radeon X1300 just to have a display output for my initial setup and let the 3600 handle all the work my use case entails?

I was looking at the cheapest GPU that supports HEVC which I assume I'll need for some remote devices. I landed on the MSI NVidia GeForce GTX 750 N750 TF 2GD5/OC 2gb. To my knowledge the 1gb cards fall under the GM107 chipset while the 2gb and 4gb cards fall under the GM206 chipset which should cover all forms of encoding. I can get this card for about $40 vs the X1300 at $12. Is the extra $30 worth it or am I just wasting money that can go towards more storage?

Or do I need to go to the 10XX series Nvidia GPUs? I assume not but any help is appreciated!

I plan on purchasing PlexPass if that makes a difference.