All Devices iPadOS 13 and iOS 13: How much more RAM do they use?

[EugW]

We now know that Apple requires 2 GB RAM for iOS 13 and iPadOS 13. With all the new computer-like features, just how much more memory hungry are iPadOS 13 and iOS 13? Also, how much more RAM can apps use, including with multitasking?

 

[shenfrey]

Apple have done such an amazing job in optimising the software, I’d imagine around 640KB


Okay, really, I’m not sure.

 

[Shirasaki]

I’d say more than 128GB /s.
But an app in iOS should be able to use as much as 50% of the ram the device has in any given moment, meaning an app running in iPad Pro 2018 can use as much as 2GB per app.

 

[UltimateSyn]

I’d say more than 128GB /s.
But an app in iOS should be able to use as much as 50% of the ram the device has in any given moment, meaning an app running in iPad Pro 2018 can use as much as 2GB per app.

Well, as much as 3GB, right? If an app running on the 1TB version still gets to use 50% of its RAM.

 

[Sunshoopa]

Well, as much as 3GB, right? If an app running on the 1TB version still gets to use 50% of its RAM.

I thought that it managing the 1TB flash memory took the extra ram by default. I really don’t know how that works tbh, I never thought about that in desktop PC’s where I could put in a 20 TB drive without thinking about ram usage with it.

I used to have a widget that showed free ram, I should get it again and monitor it. I know iOS 12(edit: after a fresh restart) usually took about at an average of 800 MB to 1.2 GB on it’s own on my iPad Pro 10.5” (which has 4GB of RAM). It was super easy monitoring it on there due to being jailbroken though.

EDIT: After a fresh restart on 13 it’s using 920 MB. So as far as a fresh restart goes, it seems about the same.

 

[Shirasaki]

Well, as much as 3GB, right? If an app running on the 1TB version still gets to use 50% of its RAM.

I don’t think so. On my iPhone 6s Plus, a game could use as much as 1GB of RAM. I think on iPad Pro an app can use as much as 2GB RAM, whether it is 4GB RAM or 6 GB. My guess is larger memory might help addressing those huge capacity disks in iOS but I cannot confirm that. Arstechnica suspects 6GB is for people who will open very large files on iPad.