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Ilias5FEE
Participant
May 1, 2023
Answered

AMD PC zu langsam

  • May 1, 2023
  • 2 replies
  • 580 views

Hallo Leute,

 

habe mir einen Pc mit folgenden Komponenten gebaut:

 

7950x

3060ti

64gb ddr5

kingston 2tb 7000MB/s

 

mein Premiere hängt sich sobald das a7s3 footage (4:2:2 10bit 200MB/s 50fps) gegraded ist sehr oft auf.

Von flüssigem arbeiten isr da nicht mehr die Rede.

Teilweise hängt er sich für 20sek auf

woran könnt's liegen? 
LG

ilias

This topic has been closed for replies.
Correct answer RjL190365

ilia's,

 

In addition to what Kevin stated, is your A7SIII footage encoded in XAVC-S or XAVC-Si? If yes to either, then you will not have hardware-accelerated decoding at all regardless of which CPU or GPU you have. Hence, you will suffer from choppy playback regardless of CPU or GPU.

 

If on the other hand your footage is in XAVC-HS, then your system does not support hardware decoding at all. For Windows, only systems powered by an 11th-Gen or newer Intel Core I-series CPU that have integrated Intel on-CPU graphics both present and enabled support 4:2:2 HEVC at all for hardware decoding. All other PCs including yours support only 4:2:0 for hardware decoding, and in the case of H.264 only 8-bit.

 

And though Adobe chose not to support 4:4:4 hardware decoding for HEVC (as newer Nvidia GPUs support), the 4:2:0 restriction is dictated by the discrete GPU manufacturers. In other words, for HEVC your RTX 3060 Ti supports 4:2:0 or 4:4:4 - but oddly not 4:2:2 - for hardware decoding.

2 replies

R
RjL190365Correct answer
Legend
May 2, 2023

ilia's,

 

In addition to what Kevin stated, is your A7SIII footage encoded in XAVC-S or XAVC-Si? If yes to either, then you will not have hardware-accelerated decoding at all regardless of which CPU or GPU you have. Hence, you will suffer from choppy playback regardless of CPU or GPU.

 

If on the other hand your footage is in XAVC-HS, then your system does not support hardware decoding at all. For Windows, only systems powered by an 11th-Gen or newer Intel Core I-series CPU that have integrated Intel on-CPU graphics both present and enabled support 4:2:2 HEVC at all for hardware decoding. All other PCs including yours support only 4:2:0 for hardware decoding, and in the case of H.264 only 8-bit.

 

And though Adobe chose not to support 4:4:4 hardware decoding for HEVC (as newer Nvidia GPUs support), the 4:2:0 restriction is dictated by the discrete GPU manufacturers. In other words, for HEVC your RTX 3060 Ti supports 4:2:0 or 4:4:4 - but oddly not 4:2:2 - for hardware decoding.

    Kevin J. Monahan Jr.
    Community Manager
    Kevin J. Monahan Jr.Community Manager
    Community Manager
    May 2, 2023

    Gutentag Ilias,

    I read about your issue and hope to shine some light on it. The format you mentioned, although fairly common, is also very hard for many computers to deal with, especially at 4K. 

     

    Why? Although powerful, AMD CPUs are better suited for mezzanine codecs, like ProRes, DNxHR, and GoPro Cineform because they do not have the Quick Sync iGPU doing a lot of the decoding work needed for H.264 or HEVC-based formats. A computer outfitted with an Intel CPU between the 11th and 13th gen is better suited for such footage. See this article for details.

     

    What do do? You can work with a system with Intel CPUs of that generation. If that is not possible, my advice is to transcode or create proxies for the footage to a mezzanine codec. I use ProRes or ProRes LT. 

     

    Conclusion: Avoiding H.264 or HEVC formats and dealing with them as I mentioned will save you tremendous time and energy during editing and export for the formats. Please try a test and report back if that newer workflow is better to deal with or not. It takes drive space and a little time up front that pays great dividends for your edit session on the back end. One huge win of this alternate workflow is the ability to use a thing called "smart rendering" for lightning fast exports of that same codec you can use as master. I love that ability. 

     

    Sorry for the hassle!

     

    Thanks,
    Kevin 

    Kevin Monahan - Sr. Community and Engagement Strategist – Adobe Pro Video and Audio
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