iPad Can someone please check the internal memory of the iPad Pros?

Discussion in 'iPad' started by Robertjan88, Nov 5, 2018.

  1. Robertjan88 macrumors regular

    Joined:
    Oct 30, 2018
    #1
    Following the announcement that the 1TB versions of the iPad Pros have 6GB of internal memory and the other versions MIGHT have 4GB, I was wondering if someone with the 64, 256 or 512GB could please confirm this as soon as possible.

    Every review website seems to have received the full specced version from Apple, hence I am not expecting any to review the versiones with less storage. :(
     
  2. macduke macrumors G4

    macduke

    Joined:
    Jun 27, 2007
    Location:
    Central U.S.
    #2
    Here are the model identifiers we have in Geekbench so far and how much RAM each one has:

    iPad8,1: Unknown
    iPad8,2: 6GB
    iPad8,3: 4GB
    iPad8,4: 6GB
    iPad8,5: Unknown
    iPad8,6: 6GB
    iPad8,7: Unknown
    iPad8,8: 6GB

    Source: https://browser.geekbench.com/v4/cpu/search?page=1&q=iPad8,1&utf8=✓

    The 6GB models seem to have an "x" before the last two AP digits in their logic board identifier.

    The reason there are four 6GB models is because they seem to be segmented like this:

    11" 1TB
    11" 1TB LTE
    12.9" 1TB
    12.9" 1TB LTE

    The other numbers seem to be like this:

    11" 64-512GB
    11" 64-512GB LTE
    12.9" 64-512GB
    12.9" 64-512GB LTE

    Apple seems to list their identifiers by board changes. So the extra RAM is a board change. Adding LTE is a board change.

    Now, it's important to note that it's impossible to know for sure that, say, 512GB isn't included in the 6GB group since Apple doesn't seem to segment based on drop in storage configurations. There are only two 4GB devices in the Geekbench browser at this moment, and they are both iPad 8,3. Every review that I've seen has been iPad 1TB models in 11" and 12.9" sizes. If someone can find a review that has less than 1TB AND has posted RAM information then we can know for sure. At least one of them seems to exist out there in the wild unless those two tests came from someone at Apple.

    As I've spoken with other forum members on this topic, some of us have come to the conclusion that larger capacity SSDs need additional addressable RAM to for file system management. The additional amount needed for 1TB seems to be about 512MB extra over 512GB models (1GB total) when looking at other manufacturers of SSDs. Seeing as how you can't buy RAM in 4.5GB or 5GB capacities, this is why Apple put 6GB in there. So 1TB users should be getting around 1.5GB of extra RAM. But this should also mean that 512GB users have usage of 512MB of RAM total, 256GB uses 256MB total, and 64GB uses 64MB total. So, for instance, 512GB users should have 256MB less usable RAM than 256GB users. I'm not sure if that's completely the case or if Apple included some special memory somewhere else on the board for managing SSDs for 512GB and prior and for this time it was just easier to add system RAM to help on 1TB models, but if that's the case, I doubt it would split managing between some special RAM and system RAM so the 1TB might only really be 1GB of RAM better.

    Anyway, this is mostly me trying to figure out logically what is going on with limited knowledge of SSD controller and logic board design, so if someone else knows better feel free to explain it so that we can all understand it. But for now this is what I think the reasoning behind the 1TB model having more RAM is. Perhaps in the future Apple could make this process better by not using system RAM but RAM attached to the flash memory itself (or maybe they already do on the lower models?) but I think they didn't want people who buy the 1TB model to be penalized with lower addressable RAM and maybe it wasn't possible for them to have another solution right now. I hope for the next model (~18 months away probably) they start at 256GB storage and include 8GB of RAM across all models.
     
  3. Robertjan88 thread starter macrumors regular

    Joined:
    Oct 30, 2018
    #3
    So, in theory, on Nov 7th when most people are receiving their preorder, we should be sure. Hopefully, people with less than 1TB storage can run a Geekbench and share their results. :)
     
  4. atlatnesiti macrumors 6502a

    Joined:
    Sep 4, 2008
    Location:
    Sydney, Australia
    #4
    Thanks Macduke. That was very thorough and informative post.
     
  5. macduke macrumors G4

    macduke

    Joined:
    Jun 27, 2007
    Location:
    Central U.S.
    #5
    Will do but I don't get home until the evening. I have ordered the 12.9" 256GB LTE model.

    I've been thinking a lot about it, and if I did do it, I would go 1TB but without LTE, which is not crucial to me but nice to have. But even then the cost increase is $400 more without LTE for storage that I will largely not use (I think I'm around 150GB right now) and RAM that I might need on rare occasions, and I'll still have a Mac for bigger projects. And there's no way I'll go more than two generations before I upgrade again, so we're looking at 2 years minimum and 3 years at most. I'd rather pocket that $400 and get a tricked out version 2-3 years from now. I doubt 4GB will be much of a drain in 2-3 years. Beyond that? Possibly, depending on how advanced iOS gets. And I think for the iPad it's going to get pretty freaking advanced starting next year. But for the expected life of this product I think I'm good, at which point it will either be handed down to my grandparents or kids (my wife has no need for the 12.9") or I'll just sell it.
     
  6. Robertjan88 thread starter macrumors regular

    Joined:
    Oct 30, 2018
    #6
  7. Nanotyrns macrumors 65816

    Nanotyrns

    Joined:
    Sep 16, 2012
    Location:
    Denver
    #7
    I would think as soon as ifixit gets their hands on one they will do a teardown and that might answer the question
     

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6 November 5, 2018