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[Jellyfin] PCIe x4 graphic card for transcoding (self.selfhosted)

submitted 6 months ago* (last edited 6 months ago) by peregus to c/selfhosted

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I have only a PCIe 2.0 x4 and a PCIe 3.0 x16 free and I need to install a 10Gbps SFP+ card and a graphic card for transcoding with Jellyfin (the CPU is an old E5-2620 v2). Since I can't find any SFP+ card that is x4, do you know a graphic card with decent transcoding capabilities (I'd day 2 4K simultaneously) that is only PCIe 2.0 x4?

Edit: the x4 slot is full length.

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[–] [email protected] 2 points 6 months ago* (last edited 6 months ago) (1 children)

PCIe is back- and forwards-compatible, so even an RTX 4090 would in theory work in a PCIe 2.0 x4 slot.

Now, PCIe 2.0 x4 is obviously really slow compared to what most current cards support (PCIe 4.0 x16), but I doubt transcoding is bandwidth sensitive on the PCIe link.

So pick pretty much any card, be wary though that some consumer-focused cards artificially limit the amount of concurrent transcoding sessions they support. Seems like Nvidia is limiting consumer cards to now 8 sessions, which is probably plenty.

[–] peregus 1 points 6 months ago (1 children)

Thanks!

[–] roofuskit 2 points 6 months ago

There are things you can do in Linux to unlock the max number of transcoding sessions as well. You can Google it if you ever hit that wall.