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GPU utilization

New Here ,
Sep 09, 2021 Sep 09, 2021

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https://drive.google.com/file/d/11U9FV5Hf8O5CjRqaQjxxga4-ywU3F1mm/view?usp=sharing

 

System specs: iMac 5k, 27in, 2020

3.3 GHz 6 core i5

32 GB 2667 MHz DDR4

AMD Radeon Pro 5300 4 GB

 

Currently I am trying to assemble a sequence and am experiencing terrible playback performance. Timeline is set to 1920 x 1080 and 1/4 resolution. Footage is a mix of all-I .mxf from 2 Canon C70s and relatively low bitrate H.264 from a C100 MKII. Activity monitor shows very low GPU utilization, is there a way to fix this? Perhaps a setting I am overlooking? Have tried uninstalling and reinstalling premiere with no change. All footage is stored locally on the internal SSD. 

 

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Editing, Hardware or GPU, Performance

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Adobe Community Professional ,
Sep 09, 2021 Sep 09, 2021

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Might want to consider converting to an edit friendly format or use proxies for the H.264 footage.

i frame from canon should not be a problem.

Playback is mostly done on cpu not gpu.

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New Here ,
Sep 09, 2021 Sep 09, 2021

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That's the strange part - playback is smooth with the h.264. It is the .MXF files from the C70 where I am getting lag. Literal seconds between pressing play/pause as shown in the video I linked.

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