Considering that:

  1. Raspberry Pi 4 maximum RAM is 4Gb and so its memory is completely addressable by a 32bit OS

  2. all the code available for Raspberry is a 32bit code

are there any meaningful and reasonable advantages to run a 64bit OS?

This a background question behind all the recurring searches for a 64Bit OS per Raspberry Pi 4 and even for Raspberry Pi 3.


If there aren't any reasonable advantages to run a 64bit OS on a Raspberry Pi 4 due to its limits in RAM size why compile, offer and search for a 64bit OS? Would it be even worse than run a 32bit OS?

  • The default Raspbian Buster for Pi4B is still 32-bit. There's nothing that will force you to go to a 64-bit OS.
    – Dougie
    Dec 2, 2019 at 17:13
  • This topic has lots of useful information on the subject.
    – Botspot
    Dec 2, 2019 at 17:28
  • For memory mapping the sea of additional virtual addresses is extremely helpful.
    – crasic
    Dec 2, 2019 at 19:26
  • 1
    Although the duplicate is not specifically about the Pi 4 and predates it, the answer here is the same regardless of model. Then "Why compile, offer and search for a 64bit OS?" is too much of a subjective and opinion based question, by which I mean different people may have different reasons, all of them equally valid. That's fine for a discussion style forum, but this is not. If you have a concrete context (eg., "I use my Pi for _____, would I benefit from a 64-bit OS?"), then that's a specific question with a reasonably objective singular answer.
    – goldilocks
    Dec 2, 2019 at 22:44
  • My idea was to objectively and technically know whether it is better to use a 32bit instead of a 64bit OS on Raspberry Pi 4 but never mind.
    – blockmined
    Dec 3, 2019 at 8:59


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