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phill85

macrumors regular
Original poster
Jul 19, 2010
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...and this was within 10-15 minutes. Serious question... But I'm not sure 256GB will cut it. If you ever have a full day of shooting, say if you're in full tourist mode, and you want to shoot ProRes, you're going to be hitting the max pretty quick!
 
In this video the reviewer mentions that with ProRes he was seeing 650MB/s file sizes.

EDIT: Re-watched the video again and the reviewer was seeing 650mb/s not 650MB/s. My bad.

 
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I remember seeing a review that tested the read/write speed of the storage on the 128GB vs 256GB variants of the 13 Pro and the 256 is noticeably faster. I suspect this may be the real reason Apple has restricted 4K ProRes on the 128 and not as a caveat of the storage space itself
 
I remember seeing a review that tested the read/write speed of the storage on the 128GB vs 256GB variants of the 13 Pro and the 256 is noticeably faster. I suspect this may be the real reason Apple has restricted 4K ProRes on the 128 and not as a caveat of the storage space itself
IIRC, the blocks of SSD storage can be written to simultaneously. A 128gb phone has fewer blocks and therefore data can’t be written to storage as quickly. If you have a camera mode that needs to, hypothetically, write 500mb/s but your storage can only write 300mb/s, then you have a problem.
 
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I remember seeing a review that tested the read/write speed of the storage on the 128GB vs 256GB variants of the 13 Pro and the 256 is noticeably faster. I suspect this may be the real reason Apple has restricted 4K ProRes on the 128 and not as a caveat of the storage space itself

That myth was debunked a while ago. Apple says ProRes 4K uses about 6GB per minute. That translates to 100MB/sec. iPhone 12 128GB can write 400MB/sec. Even iPhone 7 storage can handle that rate.
 
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That myth was debunked a while ago. Apple says ProRes 4K uses about 6GB per minute. That translates to 100MB/sec. iPhone 12 128GB can write 400MB/sec. Even iPhone 7 storage can handle that rate.
So it’s just a storage thing. 👍
 
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That myth was debunked a while ago. Apple says ProRes 4K uses about 6GB per minute. That translates to 100MB/sec. iPhone 12 128GB can write 400MB/sec. Even iPhone 7 storage can handle that rate.
Except it could be as high as 650MB/s.
 
I am averaging about 6GB/min on ProRes. I purchased a 1 TB iPhone 13 Pro Max with the expectation that I have now screwed myself over for all future phones by getting at least a minimum of 1 TB storage going forward. The caveat though is realistically moving these videos to a computer for editing. Lightning is stuck at USB 2.0. These are not small file sizes, and backing up with iCloud is atrocious considering I have 2 TB of storage on the cloud. I see the limiting factor being storage and movement of file(s) to and from devices.
 
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I’m so glad I live in a country where I don’t hear people saying “super pumped” 🤣


I’m kidding. Great video 👍🏻
 
Given the fact that all the ProRes video can be transferred off the 13 Pro series, the storage size really isn't the issue as much as it is the read/write speed of the 128GB vs 256GB or higher storage capacities, correct?
 
So it’s just a storage thing. 👍

I would call it a feature rationing or marketing thing. 6GB/min allows users to store at least 10 minutes of video on 128GB devices. The app could display a warning when the device reaches low storage.
 
wait.. how do I shoot in ProRes? (13 Pro Max 256gb) or do I need to buy a 3rd party camera app?

thanks!
 
I would call it a feature rationing or marketing thing. 6GB/min allows users to store at least 10 minutes of video on 128GB devices. The app could display a warning when the device reaches low storage.
Maybe a bit of drive wear concern as well? If you're going to more or less fill up your phone with 20 minutes of video, you probably don't want to be doing that over and over again if you are using it for that feature in particular.
 
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Maybe a bit of drive wear concern as well? If you're going to more or less fill up your phone with 20 minutes of video, you probably don't want to be doing that over and over again if you are using it for that feature in particular.

If MacBook can withstand a few TB of swap writes per month, I don't think it's a problem for iPhone. I also doubt many people are using the feature in the first place given the slow speed to get the files off the device.
 
Yikes. Well I guess I’m glad I got 512 GB then. But realistically I don’t know how often I’m going to shoot in Pro Res.
 
I’m not sure this is really that much of a big deal. Most people using this will be doing it to create content for publishing, and people that do will likely transfer to a MacBook or other external devices, not just keep it on their iPhone.
 
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