[rsynnott]

Intel. Currently, if you want to use low power RAM with an Intel mobile chip, you have to use LP-DDR3 in a config that maxes out at 16GB. You can also use non-LP DDR4 up to 32GB (Dell makes a laptop that does, for instance), but at that point you have a somewhat increased power draw when the system is running, and a _dramatically_ increased power draw on standby (IIRC about five times the power). Apple laptops have traditionally had excellent standby battery life; they're presumably not willing to sacrifice this.

Upcoming Intel mobile chips will resolve this, allowing use of LP-DDR4.

[mort96]

I'm looking at this Intel CPU: https://www.intel.com/content/www/us/en/products/processors/...

That claims to support up to 32GB memory, and it claims to support, among other things, LPDDR3-1866. Are you saying that if you want to use LPDDR3-1866 with that CPU, you're limited to only 16GB? I can't find anything about that through some quick googling, but if it's true, I retract my snarky comment.

[rsynnott]

Note "(dependent on memory type)". It can do LPDDR3, and it can do 32GB, but not both at once. You'll note that any laptops which do 32GB will list DDR4 RAM.

[mort96]

How about this beefier mobile CPU, which supports up to 64GB RAM? Maybe they'd have needed to make some of their pro laptops a bit less thin, but they are _Pro_ laptops after all. https://www.intel.com/content/www/us/en/products/processors/...

Also, I wish Intel would just list the maximum supported memory configuration for each memory type, instead of just having a worthless "(depending on memory type)".