1. Mtn_Biker's Avatar
    I'm currently using a MBP 2013 with 16GB driving a 4K monitor. I'm thinking to a 27" iMac with 2TB fusion drive and continue to use the 4K monitor when I need the real estate.

    I tend to have a lot of Safari tabs at times—say 20, Mail, Evernote, TextMate, Console and a few other apps open. Photos app is driving me to upgrade: 20 or 30 seconds to delete a photo, for example. First time posting here and don't see an way to photo a screen shot, so here's what Activity Monitor shows in words with 20 apps open, (numbers rounded off):
    Memory Used: 12GB
    Cached Files: 4GB
    Swap Used: 4GB
    App Memory: 8GB
    Wired Memory: 2GB
    Compressed: 2GB

    The numbers a couple of hours later are similar except Swap is up to 7GB and compressed 600MB.

    Will I benefit from 16GB?

    I usually buy refurbs and 8GB is much more common and of course cheaper. Thanks for any info. I don't do any gaming, no video editing.
    09-16-2018 11:01 PM
  2. Mtn_Biker's Avatar
    OP here. It's been a while since I've dealt with an iMac and forgot you could add memory; so I'll order 8GB and probably upgrade to 16GB unless I find out more would help. (Usual after posting thoughts on what to search for revealed upgradeability)

    PS I may end up ordering a new one because I prefer a numeric keypad and that seems to be rare in the refurbs.
    09-16-2018 11:25 PM
  3. Trees's Avatar
    Getting as much RAM as possible is typically a good idea. Requires less swap or compression. SSDs are fast, so the swap may not be as noticeable as with a spinning HDD, but still preferable to keep as much as possible in RAM.
    09-17-2018 06:58 AM

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