Yeh A380 arc really shines here. A couple of unsolicited notes if you go that route.
Ffmpeg > 6.0
VAAPI api is the winner for encoder, libsvtav1 is good too. - libaom-av1 is REALLY slow.
intel-media-sdk is needed - at least in debian, the free version in bookworm and testing repos is perfect - the non-free version mangled the files Decoder support in hardware is a thing to watch out for. (Plex+AppleTV had to have a profile set and forced on it, but that was really simple)
At the moment, I’m running three encoding streams simultaneously and it uses around 95% of the GPU BUSY stats - I don’t strictly know if that’s the best metric to measure against, but it is good enough for my half-arsed efforts.
Given the price I’ve seen the 750’s on sale for, it wasn’t that much of a reach to put a 750 in the server as well, but it was a physical space constraint plus once I’m finished the encoding effort, it would be way more than is ever needed for on the fly transcodes or one offs. Plus there are low profile A380 variants and it doesn’t require an extra power connector*.
*Turns out the Asrock one I have does require an 8pin - but it looks like the low profile version doesn’t. So maybe discount that point
I’ve got one and it handles about 3 transcodes from x264 to AV1 fairly effortlessly.
It’s a champ for Jellyfin. It’s 2024 and Intel produced a really good GPU… the world is weird. :P