this post was submitted on 02 Aug 2024
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The latest AMD cpus do have transcoding, but Amd transcode isn't very good and isn't very compatible with Linux.
You can pick up an Intel A310 single slot GPU for $100 and it has AV1 encode, which is something that the igpu QSV doesn't have. Works very well in my Epyc motherboard with 76 pcie lanes. I definitely recommend going with an ATX 1st gen Epyc cpu+motherboard if you want something that can do NVMe raid.
It's compatible just fine. But the quality... well, it's not the worst, but definitely not the best quality.
Politely, not the worst compared to what, exactly?
It's way worse than qsv, nvenc, x264 or x265 which are basically the only hardware or cpu options you're likely to run into doing plex transcoding.
I don't have QSV or NVENC hardware to compare, but AMD is perfectly fine in most cases.
I mostly noticed quality drop with very busy scenes and some scene transitions.
Outside of those the quality was acceptable.
I'd say on my setup it's comparable to software encoding with x264 veryfast preset.
And my GPU is 5 years old now, so I'm sure newer cards have improved.