As I say above, to serve 20 views, you will need Plex Pass and combine the power of your server
with CPU and GPU.
The CPU-GPU combination is not something fixed, since there can be many variants, but there are some support restrictions
with Plex, for example, when choosing the GPU, choose an nVidia with NVENC technology, which is hardware
exclusively for encode-decode tasks, that is, hardware that facilitates transcoding.
AMD implements VCE (currently VNC) technology which is the variant of NVENC for AMD, but I think Plex doesn’t support it.
Remember that nVidia limits the number of simultaneous NVENC sessions (I think 3 maximum) on consumer market cards.
To eliminate this limitation, a patch must be installed:
Another very important point is the quality of your media, because it is not the same to transcode a movie to 1080p than one to SD.
Based on Plex support, these are the Passmark scores a CPU needs to transcode based on
Quality: (Plex doesn’t support 4K yet)
- 4K HDR (50 Mbps, 10-bit HEVC): PassMark score of 17000 (transcodes at 10 Mbps 1080p)
- 4K SDR (40 Mbps, 8-bit HEVC): PassMark score of 12000 (transcodes at 10 Mbps 1080p)
- 1080p (10 Mbps, H.264): PassMark 2000 score
- 720p (4 Mbps, H.264): 1500 PassMark score
https://support.plex.tv/articles/201774043-what-kind-of-cpu-do-i-need-for-my-server/
When choosing CPUs, I would go for an AMD Ryzen, especially one of the 3000 series, which has dropped in price with the release of the
4000 and 5000 series. They are powerful processors and much cheaper than Intel Core
When choosing an nVidia GPU you can look at the graphics with NVENC technology at this link:
and to look at the number of simultaneous transcodes it can support based on the quality of the medium,
you can look at this link:
Try to make the CPU-GPU combination balanced or you will have a bottleneck in the system, that is, do not mount a powerful GPU
if the CPU is low-end and vice versa. To choose a combination that does not cause a bottleneck, you can look at the following
link:
https://pc-builds.com/calculator/
Regarding RAM, with 8 GB you have plenty
Prices vary from country to country, but I think with 1500 you have plenty. There are also pages that help you get one
proper configuration, for example
where there are thousands of different settings.
(Google translator)
