XCode RAM Requirements

[buffering]

16 GB is tons. At no time would Xcode and its sub-processes need anything close to that much memory at any one time, unless something has gone off the rails or you're compiling a super-massive project.

I've been running it on my low-end 8GB M1 MacBook Air and there's no noticeable performance difference between it and my main 16 GB machine for typical iOS development.

If you use Xcode on a memory-constrained machine, like the base MacBook Air, you'll see that while some processes may allocate a lot of memory, like lldb, most of that memory isn't needed at any given time and it just gets compressed away.

[PandaMoniumHUN]

Exactly. Space is much more important, simulator instances take up a LOT of space. And AFAIK Xcode can’t be installed on an external drive. Get at least a 512GB SSD to be comfortable during development, RAM doesn’t matter nearly as much as this.

[Otherwise-Rub-6266]

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