The 970 works for encoding h.264 only. My recommendation: If you have a 7th Gen Intel CPU with iGPU or later, use that. Otherwise, sell the 970 and get one of these (in this order):
- Intel Arc A310
- GTX 1650
- GTX 1630
- Quadro P1000
- Quadro T400
- GTX 1050 Ti
- GTX 1050
- Quadro P620
- Quadro P600
- Quadro P400
The Intel Card has the best encoder, followed by Nvidia Turing, then Pascal. I recently sold my 970 and got a 1050 Ti for the same price. Works great with Jellyfin. If you need to tone map HDR, you probably shouldn’t get anything with much lower performance than that. If it’s just some UHD to HD or h.265 to h.264 for compatibility, even the P400 will work well.
Surround sound didn’t work for me with the Jellyfin player and with the native player language selection didn‘t work. If you don’t have to transcode and spare a few quid, Infuse is great. Sadly can’t recommend it to my friends accessing my server from outside my home network because of said lack of transcoding.