Not enough memory -> can't do it.
Not enough CPU -> can do it, but it's slow.
(Ubuntu with the OOM killer - could do it, but when it filled half of memory, it was killed.)
Not enough memory is sometimes just a slowdown these days, with ssd and swap.
For me, not enough memory is mostly -> close some damn browser tabs.
Not enough memory is sometimes just a slowdown these days, with ssd and swap.