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Peter25587330m3rd
Participating Frequently
February 4, 2025
Answered

Is my IGP my bottleneck? I've tried -all- the common advice

  • February 4, 2025
  • 4 replies
  • 628 views

While starting/stopping playback and attempting to scrub to find specific frames, the Program window just doesn't respond like it should. It hesitates before starting playback, and there are times it just can't handle scrubbing at all. Sometimes, in fact, the video freezes while the audio continues playing.

 

Here's everything I've done, after spending countless hours researching.

 

I typically take home movies with my Google Pixel, so I understand I'm already in trouble due to VFR. So I convert the VFR files to CFR ProRes Proxy files using Shutter Encoder. I attach the proxies to my raw files. I create a new sequence

 

I have the Adobe software on my system SSD, my video files and proxies are on a second, internal storage SSD, and my cache directory is set to a third SSD (external). I delete the cache often (likely unnecessarily).

 

I've checked boxes to use the GPU wherever I can. I've read, however, that certain processes never use the GPU and only use the IGP.

 

My PC specs are:
Windows 11 Home
CPU: i9-12900K, 3200 Mhz (overclocked to 5000 Mhz), 16 Core(s), 24 Logical Processors
RAM: 64 GB (32x2) DDR5 6000 RAM
MOBO: MSI PRO Z790-P

IGP: Intel UHD Graphics 770

GPU: NVIDIA GeForce RTX 4060 Ti

 

It should be flying, I believe.

 

I've researched Intel Quick Sync, and everything online says "turn it on in your BIOS". Well, there's no setting in my MOBO's BIOS that mentions it. I've researched like crazy "does my MOBO support Intel Quick Sync", and I can find nothing definitive, other than the lack of mention of it it in my MOBO manual or BIOS. My CPU definitely supports it, however again my MOBO BIOS has no setting for it than I can see/unhide.

 

Could the lack of Intel Quick Sync be my problem?

    Correct answer John V Knowles

    Afraid I can't help with the QuickSync, not a PC person so hopefully someone else will chime in.

     

    I do think that your source footage is the pain point though. When you have compressed VFR footage like that, the solution is not to use proxies -- it's to transcode to a CFR ProRes file and use THAT as the new master. Proxies are meant for cutting low res before returning to the raw masters clips for finishing; for that type of phone footage there's zero benefit to returning to the raw media. Transcode to ProRes LT or 422 and edit with those instead.

    4 replies

    diego9543_6569
    diego9543_6569
    Participant
    January 30, 2026

    From what you’ve described, your hardware isn’t the bottleneck at all — that system should absolutely fly. The real issue is almost certainly the source footage workflow rather than the IGP or lack of visible Quick Sync settings. Phone-recorded VFR media is notoriously problematic for NLEs, and even with proxies attached, Premiere can still struggle because it’s constantly referencing the original download ppt scribd​ compressed files. In this case, the better approach is to fully transcode your clips to a CFR ProRes format (LT or 422) and use those files as your actual masters, not just proxies. Intel Quick Sync typically doesn’t need an explicit BIOS toggle on many modern Z790 boards; as long as the iGPU is enabled and drivers are installed, it’s available. So no — your UHD 770 isn’t the bottleneck; the VFR source media is.

    hawkins Max
    hawkins Max
    Participant
    January 29, 2026

    Given your specs, the hardware itself shouldn’t be the bottleneck at all, and the UHD 770 IGP is unlikely to be the core issue here. The bigger red flag is the phone-shot VFR footage, which can still cause timeline instability best cpu and gpu combo even when proxies are involved. In cases like this, fully transcoding to CFR ProRes and using that as the new master (not proxies) usually gives much smoother playback and scrubbing. Intel Quick Sync is generally enabled automatically if the iGPU is active, and the lack of a visible BIOS toggle is common on newer boards. I’d focus less on Quick Sync and more on eliminating VFR from the workflow entirely.

    M
    Muhammad_Raza6131
    Participant
    September 1, 2025

    your igp isn’t the main bottleneck, your rtx 4060 ti should handle playback fine. the issue is more likely adobe not using gpu acceleration fully for scrubbing, so quick sync won’t fix everything.

    J
    Community Expert
    John V KnowlesCommunity ExpertCorrect answer
    Community Expert
    February 4, 2025

    Afraid I can't help with the QuickSync, not a PC person so hopefully someone else will chime in.

     

    I do think that your source footage is the pain point though. When you have compressed VFR footage like that, the solution is not to use proxies -- it's to transcode to a CFR ProRes file and use THAT as the new master. Proxies are meant for cutting low res before returning to the raw masters clips for finishing; for that type of phone footage there's zero benefit to returning to the raw media. Transcode to ProRes LT or 422 and edit with those instead.

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      Peter25587330m3rdAuthor
      Participating Frequently
      February 4, 2025
      John, the lightbulb has finally lit up. I don't know what I was translating
      when I read other posts re: "here's my workflow when I have VFR footage",
      but I interpreted all of them as going back to the VFR ultimately.

      Thank you for this clarity. I'll see what kind of difference it makes with
      Premiere's performance.
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