I don't need to export to the ProRes master file first. I just send my Final Cut Pro project directly to Compressor. Yeah taking the ProRes master file and exporting to HEVC is faster than FCP to HEVC, but in the end its not faster since I first need to export to ProRes first. Also, with an 8-10 hour video, the master file is 2-3 TB! So even if the export to ProRes Master is faster with the Ultra, I don't think in the long run it would be as fast as sending the FCP project directly to compressor.I think the reviewers need another day or two to finish their tests and post their results. The Max Tech guys were on this Cult of Mac podcast yesterday and talked about their initial impressions of the new software updates. They said for the tests they like to run, they were not seeing big changes on the Ultra export times to H.265, but they did see some gains in exporting to ProRes.
I'm not an FCP user but @Ethosik I hear you on wanting to know about how to speed up your 8-10 hour video exports as much as possible! Probably telling you things you already know, but I believe the fastest way to get a video out of FCP would be to export in the same ProRes format that you're editing with (Optimized Media). I think that type of export of existing render files should be relatively fast? And then in Compressor you could take that ProRes master and compress it to H.264/5 or whatever your delivery format is. I know in Compressor, don't know about if also in FCP, you can set up distributed rendering where the ProRes to H.264/5 encoding job is split into multiple pieces / across multiple Compressor machines on the network. That kind of parallelism is how you could squeeze every last drop out of the M1 Max / Ultra I think.
I saw the speed drastically improve going from a 2019 i9 iMac with 128GB of RAM to a M1 Mac Mini with 16GB of RAM. And another significant speed increase going from the M1 Mac Mini 16GB of RAM to the M1 Max 16" Macbook Pro with 32GB of RAM. All due to the extra encoders. I am hoping with the extra encoders with the M1 Ultra and the newer Final Cut Pro, that my Mac Studio will make it even faster still!
Worse case, I have already shaved off 2.5-3 hours during the export just going to my new laptop so even if there is 0% improvement with the Mac Studio, I will be happy. I prefer to do this stuff on full desktops. Having an All in One iMac export an 8-10 hour video for a long time is not good. And I have burned out so many laptops doing this too. So before my choices were crappy Intel Mac Mini or way to expensive 2019 Mac Pro. This is why before I moved to HEVC I still used my 2010 Mac Pro.
Now that there is a Mac Studio, I won't need to worry about the thermals as much as with the laptop. And I know its probably just left over worry from Intel Macbook Pros. But its still 8-10 hour exports a few times a week can't be good even for Apple Silicon laptops in the long run. So a desktop with proper cooling for long long long exports on a regular basis should be good! And with software improvements, I would definitely imagine the Ultra would speed things up more.