High use of Video Decode and video freezing in Adobe Premiere Pro

[Bruno340057922j8l]

Hi,

I edit videos in 4K, without using effects, just cuts, I noticed that the videos are freezing when I use the Multicam feature. Looking in the Windows task manager, CPU usage is 20%, Memory RAM is 56%, but GPU "Video Decode" is 100%.

My Configuration:

• Adobe Premiere Pro 2024 latest
• Windows 10
• Processor: AMD Ryzen 7 3700X
• GPU: XFX RX 580 8GB
• RAM : 16GB
• SSD 512GB NVME

With this information, do I need to upgrade the video card?
Would an RTX 4060TI be recommended?

Note: Without Multicam enabled, I can edit the videos, but this feature reduces the time needed to edit the videos. 

Note 2:I  have already purchased another 16GB of RAM, I will install it soon.

[Warren Heaton]

Try switching to an edit friendly format like ProRes 422 LT.

Also, "32 GB or more for 4K and higher" is recommended.

Premiere Pro system requirements

https://helpx.adobe.com/premiere-pro/system-requirements.html

[Bruno340057922j8l]

Do you say use proxy or transcode?  
I see that in 2 Flows in Multicam the use of Video Decode is around 60% and it doesn't crash, could a GPU upgrade help? 

[R Neil Haugen · Accepted solution]

Warren's got a great bit of advice. That is probably not only UHD, which is several times more pixels for the system to process ... but long-GOP. Which is recorded with only a 'real'  and compressed iframe every 9-30 or more frames.

In between, there are data sets of the pixels that a) will change before the next iframe, b) have changed since the last iframe, or c) BOTH.

So the computer has to often decompress and decode up to 30 frames of video or more, storing them to RAM/cache, to simply display the nect frame.

IF you have an Intel CPU with QuickSync hardware, then ... it's not too bad. But still, it's a load. My 32 core AMD Ryzen doesn't, but ... with those 32 cores and 128GB of RAM, I can get by sort of mostly with only one or two streams of long-GOP.

Any more than that, or a long-ish sequence, and I will t-code too. Even with that (relatively) beast of a machine.

And that's why Warren suggested t-coding or proxies to say ProResLT. As then it's the same data, simply ... every frame is an actual slightly compressed frame. Vastly easier on the computer.

[Bruno340057922j8l]

I've heard about Proxy, but I haven't done it because I make a lot of 10m videos and it requires a little work to create the Proxy files, but I'll consider it. Thank's