not sure if it will pass , you can check on youtube or level1techs forums , these guys more oriented towards linux and vm’s and there are many guys who do pass gpu’s around. if you meant if the video goes to the gpu then the IO ( display port for example ) that is not necessarily the case.
how it works as far as I know , it gets transcoded on the gpu and then sent back to cpu to compile all of the stuff together with audio etc… then to the lan. coz audio always gets processed on cpu thats how plex work , it use cpu for audio.
i am in the same boat I am hesistating regarding the gpu, coz so far i discovered that plex have issues with discrete gpu’s I can’t get it to hardware transcoding perfectly yet on the supported formats so maybe the built in gpu’s like intel igpu 630 8th gen is the best option as it is the most compatible without issues but how powerful is it? how many transcoding’s can it do at the same time ? 3 4k’s ? maybe 3x4k + 2x1080p?
for me my gtx 1080 Ti not transcoding some movies but others works flawless even thu both are same specs and formats.
