M1 iMac renders take forever

Forum|Forum|4 years ago
September 10, 2021
3 replies
3507 views

Hello,

I switched to mac about a week ago and I am a video editor for YouTubers. When I was on PC (1660 Super GPU) I would render 1920x1080 15 min videos and it would take 30 mins, but when I render videos of the exact same amount of graphics it taked around 1 hour for videos even less than 15 minutes! I edit my videos inside of premiere and render them in Adobe Media Encoder with these render settings:

Not just that I have some videos that I upscale to 4k and those are just 5 minute videos taking hours upon hours when on my old PC it would take max 2 hours. Please help because these render times are affecting my work time and it's getting really frustrating!

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Warren Heaton

Community Expert

If you would like to see render and export times increase significantly, enable Ingest in the Project Settings with the pop-up menu set to Transcode to Apple ProRes422 LT. Make sure that your corresponding Sequence Setting Video Previews are also set to ProRes422 LT. You'll then be taking advantage of Smart Rendering in Premiere Pro and the faster render times of Apple ProRes on the M1. If you're tight on drive space (1080p ProRes422 LT is about 700Mb per minute), create a custom Ingest preset for ProRes422 Proxy and use ProRes422 Proxy for your video previews.

YouTube supports ProRes now, so the only slow down is going to be your upload time. A 15 minute ProRes422 LT 1080 movie should come in just under 11GB (ProRes422 Proxy about 3.3GB for 15 minutes).

shanehgrapeinc

Participant

I am using After Effects in conjunction with Media Encoder. I don't see where to enabel ingest, transcode, Apple ProRes, etc. Never had to do any of this before getting this new Mac Studio M1 Max. It says it's going to take 5 hours to do something that should take 5 minutes. Making me look bad since I recommended this computer.

Warren Heaton

Community Expert

@shanehgrapeinc

Ingest Project Settings are speciific to Premiere Pro projects. It would be nice if After Effects had them as well.

For After Effects, we drag and drop your non-ProRes source footage to the Queue tab in Adobe Media Encoder, set the Format to QuickTime and then choose one of the ProRes Presets. The preset to use is usually based on our workflow. If you're not sure, ProRes 4444 for speical effects work, ProRes 422 HQ for broadcast, cable and streaming, and ProRes 422 LT for social media and web.

D

David Arbor

Inspiring

This is likely because you had "Hardware Encoding" enabled on your PC and the screenshot above indicates you're using "Software Encoding" for H.264 export. In the video tab, there should be a dropdown called "Perfomance" that's currently set to "Software Encoding;" switch that option and AME will use dedicated hardware on your M1 chip for accelerating H.264 and H.264 (HEVC) exports. Note, this acceleration only works with these two codecs.