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Self-hosted Jellyfin CPU or GPU for 4K HDR transcoding? (lemmy.one)

submitted 5 months ago by MoonlitSanguine@lemmy.one to c/selfhosted@lemmy.world

10 comments fedilink hide all child comments

Hey everyone, I'm building a new server to run Jellyfin (with a few other services like Pi-hole) and I'm stuck on GPU or CPU transcoding.

My main concern is smooth 4K HDR transcoding for 1 stream. I've been reading mixed advice online – some people say a strong CPU with good single-core performance can handle it, while others recommend a dedicated GPU.

Should I focus my budget (~$1000AUD/$658USD) on a good CPU, or spend some of it on a dedicated GPU?

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[–] MangoPenguin@lemmy.blahaj.zone 1 points 5 months ago (1 children)

Intel Quicksync would do it, no need for a dedicated GPU.

[–] possiblylinux127@lemmy.zip 0 points 5 months ago (1 children)

You need a Intel GPU for that. It just so happens Intel CPUs come with GPUs these days.

[–] MangoPenguin@lemmy.blahaj.zone 1 points 5 months ago (1 children)

Yes hence no need for a dedicated GPU

[–] possiblylinux127@lemmy.zip 0 points 5 months ago (1 children)

True, but to say CPU is not quite the correct term. It is still a GPU it just in on board graphics.

[–] MangoPenguin@lemmy.blahaj.zone 1 points 5 months ago

I didn't say CPU? Quicksync is Intels dedicated hardware transcoder in the iGPU.

[–] Faceman2K23@discuss.tchncs.de 1 points 5 months ago

One of my miniPCs is just a little N95 and it can easily transcode 4K HDR to 1080p (HDR or tonemapped SDR) to a couple of clients, and with excellent image quality. You could build a nice little server with a modern i3 and 16gigs of ram and it would smash through 4 or 5 high bitrate 4K HDR transcodes just fine.

Is that one transcoding client local to you? or are you trying to stream over the web? if it's local, put some of the budget to a new player for that screen perhaps?

[–] narc0tic_bird@lemm.ee 0 points 5 months ago (1 children)

Like others said an Intel CPU with iGPU, alternatively the cheapest Intel Arc GPU (A380?) supports the latest spec of Intel QSV as well.

[–] LaggyKar@programming.dev 0 points 5 months ago* (last edited 5 months ago) (1 children)

A310 is the cheapest.

I wonder how well it does for transcoding on older computers without ReBAR, since apparently gaming on it is straight out broken without ReBAR. As in, it would actually freeze for a second or so every now and then.

[–] Ptsf@lemmy.world 0 points 5 months ago (1 children)

Encoding engine basically requires it, so you'd need to implement a hack or something. https://www.reddit.com/r/IntelArc/comments/189cgsm/intel_arc_h265_encoding_performance_and_resizable/

[–] Lemmchen@feddit.de 0 points 5 months ago

Shit, this kinda screws with my plans to use the A380 as a transcoding card for my server.