CPU/memory questions and 4K

Plex Media Server Desktops & Laptops
21

@jinthoa

Yes, subtitle processing speed is important. I should perhaps have clarified I had included this in sizing the CPU.

The i7-7700 I suggested as 10,000 passmarks
https://www.cpubenchmark.net/cpu.php?cpu=Intel+Core+i7-7700+%40+3.60GHz&id=2905

I took PGS and VOBSUB (image based burning) as well as SRT, ASS, and SSA (Text-based) burning into consideration.

From a heavest / worst case -> lightest load order:

  1. Decode HEVC (software)
  2. Burn Image based subtitles
  3. Burn text based subtitles
  4. Any other decode in encode > 30 Mbps
  5. general stuff here
    .
    .
    .
    .
    .
  6. HEVC / H264 Hardware decode & encode w/ remux
  7. Convert the audio.
  8. Remux the container to send out (Direct Stream w/o audio conversion)

As primary example of this, please consider the NAS processors (J3455- ApolloLake).
It will handle 2 HEVC HDR streams -> H.264 with ease (40+ Mbps each).
It will choke on subtitle burning of any type.
This is why my i7 suggestion.

Depending on your use case, if you only plan on 1-2 concurrent streams, the i5 is less costly
(i5-7500)

1 Like
22

@ChuckPa : I will check out the J3455 processor then! Thanks

As for the number of concurrent streams, I’m only doing one at the same time for now, the i5 is indeed lest costly.

Thank you all for all those informations, I have some testing and documentation to read now :slight_smile:

23

You can search the QNAP and Synology forums. There are many comparisons there.

Be cautious. It will not handle burning subtitles well at all.

You would be better off with an i3-7300 in that case.

25

What about Intel Core i5-9400F Coffee Lake 6-Core 2.9 GHz ? Price is close from the i3-7300

26

A lot of Linux distros don’t have full support yet.
Plex doesn’t support the 9xxx processors at all right now.
This is because Plex doesn’t have the iHD video driver which is required. (Intel migrated to it for the 9xxx series)

27

The F’s don’t include integrated graphics, U’s and H’s are OK.

28

Thanks again for all those informations! I will first send back my failed hard drive and look for the relevant CPU for my configuration.

Have a great day/night :wink:

29

@pl_5309

Thank you! Forgot to include that.

1 Like
30

Quad core machines do very well . Dual cores struggle.

When burning subtitles, which are a single-threaded task, single-core speed wins out.
Otherwise, try to favor upper end clock speed (but not insane) quad core w/ hyper threading and you will be very safe.

1 Like
31

Hi again guys, I just wanted to give you an update on what I did to fix my issues.

So I didn’t had to buy any hardware after all (maybe a big fat ssd to replace my hard drive but anyway). On someone advice, I’m using now the Infuse 6 Pro app with my Apple TV 4K with the Plex Media Server integration. And this is awesome! I’m even thinking about getting a plex pass to get trailers and extras for my movies.

Here’s some info on what I suceeded to direct play with Plex + Infuse:

download

And my file:

ok
ok733×743 7.85 KB

Thanks again for your help, even though I didn’t follow what you said, everything help me a lot to understand PMS better. Knowledge is always good :slight_smile:

We can close this thread to resolve.

32

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