Storing videos as H.265 or H.264

We’ve established that already in my reply, to which you quoted yourself, in that Plex probably would not allow a direct stream in that circumstance. You quoted my posts out of order and then saw fit to complain that I was wrong, when in fact I had already admitted to that in my subsequent post which you quoted ABOVE that one.

Congratulations, I have a whopping 10Mbps up. I have no issues with direct streaming outside of my house with 1080p video containing DTS or Dolby 5.1 or 7.1 audio. Most of my stuff is just 5.1 AAC, but even those that are DTS or Dolby haven’t been a problem. It will direct stream anything that I have thrown down my significantly smaller pipe.

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I thought it might have been in the range of ‘normal operating temp’ and looked… the techy folks for that chip recommend 10 degrees F cooler than the 175F shown. That’s cause for concern I think.

Is the temp thingy accurate?
I know mine isn’t due to idle temps being lower than room ambient.
The only thing we know for sure is - if what it ‘usually’ is under strain goes up… it’s time for some air can…

Air Can got it down to 175F for @Uh_Oh. All things being equal - that’s probably too hot. We don’t know so let’s call it too hot.

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Do any of those tools show other temperatures, especially anything like a socket or TCase temperature?

That sounds hot, but “modern” Xeons ARE hot. I only see TCase limits (72C) published for the X3470 and 1156. I expect a TCase number to be a lot lower than core temp - the outside of the CPU should be a lot cooler than the core of the CPU. I sorta think if you were too hot you’d be getting throttled or shutdown.

I know Xeons shut down Right Now if they think they’re going to cook. Maybe you can find a good way to see if you’re being throttled.

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I don’t see any temp gauges for socket or TCase using either temp measurement tool.

I’ve been running this processor since 2015, but never paid attention to the CPU temp until I happened to check my drive health at the same time as a sustained pegging on the processor, otherwise I would never have known how hot this gets.

Running a HB encode does not instantly spike the temp to those temps, it does take a few minutes to get there. It remains at that temp throughout the rest of the encode. Processor clock speed does not decrease during that time period. That’s the best info I’ve got.

Unless one of those readings is categorized as an ambient temp?

Nope, CPUID’s HWMonitor says those Ambient temps are off the sicks of RAM.

image

Core Temp says I’ve got a Tj. Max of 210F

image

I think that’s good - I think that means you’ve got some headroom still.

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I came into this thread with my view of cost vs storage, learned about bitrate spikes vs upload, learned about ways to reencode videos to better fit within upload limits, learned how to fix those old analog DVDs to better fit the available screen size, and wrapped up with a better understanding of how freakishly hot my system can get while still being okay. What a meandering path of knowledge.

Thanks to everyone for their help. Very appreciated! :slight_smile:

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Now - if you have to do a Field Appendectomy you start with a large rock…

:smiley:

Do you have a ‘Case Fan’?

I’ve kinda got two of them - one grabbing inner air and sending it out through an oversized power supply and another is an actual case fan with a dial-able Speed Control/Thermostat (wide open - of course).

I’ve got many things in this box creating heat.
One is the AMD Radeon R9 380 - that has never been above, or below 156F.
I don’t know what it is about that thing, but the day it got plugged in it came up to 156F - no matter what I do - what game is played - what transcode it helps - it’s never gone to 157F… you’d think the sensor is broken, but when starting it cold - it climbs from ambient to 156F… it’s wild, man. It’s like all those idling trucks at the truck stop I guess - warmed up and ready to go.

I figure a case fan in my case is probably a good idea.
the blower noise doesn’t bother me.
like the pain in my joints - it lets me know we’re alive…

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image

You’d think that IBM / Lenovo could diagram their system better.

Where the Processor & Heatsink arrow points, is double stacked. The arrow is actually pointing to the fan that cools the stack of 4 hard drives. Directly underneath that is the CPU fan and heatsink. System fan is on the rear of the case. Air flows from the front of the system with copious airflow vents and out the back.

Yea - apart from this box having room to park another car - and the CPU Blower being dedicated to blow air on the CPU - and I can hit it quick through a ‘grate’ in the side if necessary… all the bits are there - sans the HDD fan. They get cool air from the front before it heats the room out the back.

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Amazing that you think that way.
All the thread hijackers with contradicting views is hardly “sorted”

That said this thread seems an invaluable guide in how not to use handbrake.
At least @FeMaster seems to have a clue.

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My immediate answer, to somebody asking that question, is “use h264”.

The longer answer is “use h264 if you want to be safe and slightly conservative, or use h265 if it won’t break anything for you”.

I didn’t take the question seriously at first. It’s been asked and discussed everywhere on the Internet. I saw that others had given good perspective and suggested testing with a few files. :man_shrugging:

I joined the discussion because of the OTHER parts that were unique and interesting.


The h265 algorithm is more sophisticated than h264. It’s a classic cheap/fast/good triangle. Here are a few of the things to consider when making your own decision about h264 vs. h265:

  • Quality

    • h264 and h265 can both deliver great video quality.
    • Quality isn’t itself a reason to choose between them.
  • Playback compatibility, algorithm:

    • h264 has better playback support on older client devices
    • “Older” devices may use more power to play h265.
    • h265 is supported by basically everything new today
  • Transcoding (or, compatibility part 2):

    • Plex will send a compatible file directly if one exists
    • Otherwise, Plex will magically transcode
    • Transcoding fixes compatibility problems by using server resources.
      • Great solution if need it
      • Great solution if you you have the resources.
    • Modern computers are fast (and can be made faster)
    • Old/slow/shared machines may struggle to transcode
      • Many NAS devices can’t transcode on the fly.
    • Transcoding slightly reduces playback quality
    • Transcoding makes playback slightly “laggier” to respond
  • Efficiency/bitrate/size

    • h265 files can be smaller, saving space
    • h265 files can need less bandwidth to stream
      • This can be just as important as playback device compatibility
    • Some people think storage is cheap or they have a lot of it.
      • They tolerate the increased size of h264.
      • Some folks keep the original Blu-ray rips/mkvs, too.
      • Some folks keep the originals
        • and also encode versions with every codec
        • and resolution
        • and bitrate they might need to stream.
      • These folks include “Netflix” and “YouTube”.
    • Some people think storage is expensive or they want more of it.
      • They prioritize h265’s smaller files
  • Encoding speed

    • h264 is significantly simpler and faster to encode.
    • h265 is significantly harder and slower to encode. 5x
    • Some people don’t like their computers to be busy with long encodes.
    • Some people queue them up and don’t care.
  • Subtitles

    • Something about subtitles, clients not supporting them all, and burning subtitles being a common reason for transcoding
    • Maybe this isn’t an important h265 vs. h264 topic
  • Caveat - 1080p vs. 4K

    • This is for 1080p HD and under, regular Blu-ray or digital content. For 4k the equation is different.
    • These are Plex-specific comments.
  • Coolness

    • h265 is newer and more advanced. Some people like it for that reason. :slight_smile:
    • Opinion: I believe AV1 and/or h266 will dethrone h264, not h265. I’m too cool for h265.

I’m sure I’ve missed some things. What are the other major considerations? Is there a better home for the “264 vs. 265?” FAQ?

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Very impressive summary.

That definitely sums it up quite nicely :smiley:

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