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iPhone 15 Pro iPhone 15 pro - USB-C definitely NOT operating at USB 3.2 gen 1 speeds (10gbps) data transfer is still just as slow as USB 2.0 / lightning cable.
- Thread starter MrRom92
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Comprehensive! Good work!
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This is only true for photos and videos. iTunes has that window where you transfer any kind of data into sandboxed 3rd party apps. And that’s the only method Apple has for moving data back and forth to those apps from your PC. PDFs, zip folders, etc. really anything you can think of, to whichever appropriate app is equipped to handle it.
There ARE 3rd party programs which possibly handle this better, which I have yet to try (I don’t have a license for iMazing, for example - they advertise here on MacRumors occasionally)
But of course, these apps are very much unofficial and not the “Apple Way” - ie. iTunes - so I do see it as problematic when Apple gives you the tools and the hardware and says it has such and such capability, it does X in Y amount of time, and in reality their perfectly designed and sanctioned hardware/software solution is not capable of what they advertised at all.
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Sorry I didn't chime in earlier. Was busy and didn't notice the thread.
This is my best guess, but it is a well educated one.
I believe Apple is still tweaking the algorithm to best preserve battery life and manage the heat that can come off a high performance SSD during file transfers.
It's very different managing a smartphone compared to a laptop or desktop computer.
Not everyone or every app needs to write at 10Gbps.
What will will see is tweaks made to get the best trade off between energy, SSD transfer speeds and battery life.
It will need to happen on a use case by use case basis.
iOS will detect or be informed about the app type or usage and then adjust the SSD write/read speeds accordingly.
This is my best guess, but it is a well educated one.
I believe Apple is still tweaking the algorithm to best preserve battery life and manage the heat that can come off a high performance SSD during file transfers.
It's very different managing a smartphone compared to a laptop or desktop computer.
Not everyone or every app needs to write at 10Gbps.
What will will see is tweaks made to get the best trade off between energy, SSD transfer speeds and battery life.
It will need to happen on a use case by use case basis.
iOS will detect or be informed about the app type or usage and then adjust the SSD write/read speeds accordingly.
I posted this earlier , but there is a new app from Apple for the things you mention above (this is intended to replace iTunes on Windows):
https://apps.microsoft.com/store/detail/apple-devices-preview/9NP83LWLPZ9K
Yes, I’m looking forward to the fully functional release, whenever it comes. But this is still in preview, limited in functionality and it seems that it prevents normal usage of iTunes once it’s installed, so no going back.
My 200 gig back up still took about an hour. I was hoping it could at least be faster than 400mbps USB 2.0 speeds are
That's a long time compared to mine, but it is also easy to explain.
If you look at the iPhone back up folder on your Mac you will see that the backed up data is made up of many small files.
These are your files split into many pieces and encrypted.
That has to take place at the same time during the back up process.
It's not simply a matter of transferring 200GB of data across. There's quite a bit of overhead and work going on.
But enough overhead (on two very powerful systems, mind you) that performance is dragged down to USB 2.0 480mbps speeds and not a dime faster? On the device that is advertised as being able to move data around at USB 3 10gbps?
Something else is amiss here, and even if not, this was a caveat that should’ve at the very least been mentioned in the fine print. Not “Here’s a $2000 phone that can move your data around at such and such speed… Except, surprise! it’s only some data and not any of the data that makes a difference to you in particular lol enjoy and thanks for the cash!”
This transition to USB C has been handled incredibly poorly by Apple, almost as if out of spite.
The sad reality is that on Windows the iPhone drivers (MobileDeviceSupport and others) are written for USB 2 from 15 or so years ago, and have not been updated since. As such, that's why its falling back to USB 2 speeds.
It doesn't help either that there is an incredible amount of overhead when processing files, presumably because of all the legacy code on iTunes and associated drivers.
Also, Apple doesn't have high priority for us Windows users.
They should though, we paid big bucks for the device!Feedback Assistant
feedbackassistant.apple.com
That is the theoretical maximum speed of USB 3, not the speed you get with every kind of operation.
If you're new to computers it is easy to make that mistake.
Transferring many thousands of files that are a few kilobytes or megabytes each, as in the iPhone back up process, while encrypting them at the same time, won't transfer at 10gbps because the operations have to be queued up.
It's not just a matter of transferring. All this data has to go through the CPUs and memory too. That's where the encryption is taking place before saving to the disk on your computer.
For a process like that probably not, and if/when Thunderbolt level transfer speeds do arrive on smartphones then things like heat need to be managed. A smartphone has to be optimised for temperature, energy consumption and battery life. The OS is constantly observing these readings and the algorithms will be adjusting energy, clock speeds and transfer speeds in response.
That SSD in the iPhone is a tiny single chip. It doesn't dissipate heat like a larger SSD with a thermal pad does. We shouldn't expect it to operate like a concurrent external/desktop/laptop SSD. For some things like shooting Apple Log it will be fast and for other things it will be slower to conserve power.
It will take a few OS updates to get it right as it is a new device.
It works fine for me. And you can uninstall it and reinstall itunes if you wish (I've done it a couple of times)
I’m not sure I agree this batt life energy consumption theory though as the iPhone is happy to copy large amounts of data at full speed with an SSD.
What cable did you use exactly? Tried the same with multiple cables (including the Apple Pro Cable – NOT the included one but the Pro cable) and it took 3 hours for similar backup size.
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Not correct. Several of us on the forum have Sandisk Extreme SSDs that don't play well with the iPhone. These Sandisk SSDs are notorious for having a large power draw and running hot. Some early versions of this SSD were offered a firmware fix recently, but they are still hot drives. At the moment I would not recommend this drive for use with the iPhone. I'm thinking of trading it for a Samsung T7.
I have a t7 so I don’t have the issue.
But connecting to a computer should not have any power issues as it has its own power and even charges the phone.
It's not "computer" that has issues. It's read/write and power draw of the SSDs on both sides (external and internal).
A computer can handle that well because it has a larger surface area to get rid of heat. A phone doesn't have that luxury.
The issues with the Sandisk SSD was bad. Complaints everywhere online.
SanDisk to release firmware to fix some failing Extreme and Extreme Pro V2 SSDs
A fix is coming via a new firmware, but it won't be available for all Extreme and Extreme Pro V2 SSD owners.
www.xda-developers.com
It's still hot after the fix and for mine. Hence, the connection to the iPhone is unstable. Samsung owners aren't having connection or heat issues.
It's not "computer" that has issues. It's read/write and power draw of the SSDs on both sides (external and internal).
A computer can handle that well because it has a larger surface area to get rid of heat. A phone doesn't have that luxury.
The issues with the Sandisk SSD was bad. Complaints everywhere online.
SanDisk to release firmware to fix some failing Extreme and Extreme Pro V2 SSDs
A fix is coming via a new firmware, but it won't be available for all Extreme and Extreme Pro V2 SSD owners.
It's still hot after the fix and for mine. Hence, the connection to the iPhone is unstable. Samsung owners aren't having connection or heat issues.
I don’t think we were expecting 100% 10Gbps speeds while connected to a Mac or PC, just something a lot better than USB 2.0 as the thread title suggests which is why at least I think power draw or heat isn’t at play here.
I just updated to 17.0.3 and tested.
I copied 80GB from the Sandisk Extreme to the 15PM in 1 and a half minutes.
That is about as fast as we can expect and it is very fast. These are large files so they saturated the bandwidth.
An iPhone back up won't write that fast because it is a different process.
This Sandisk Extreme itself seems to have problems with iOS17. It sometimes is detected and sometimes isn't. It runs hot even when it does nothing and isn't mounted in the Files app.