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A comment on Apple unveils M1, its first system-on-a-chip for portable Mac computers. Parent comment

Re:Apple unveils M1, its first system-on-a-chip for portable... by hajile on Tuesday November 10, 2020 @05:31PM (#25052957)
RAM limits are pretty easy to explain. 16GB chips cost disproportionately more and use more power.

I wonder if they use 2 4GB chips or 1 8GB chip in the low-end SKU?

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Re:Apple unveils M1, its first system-on-a-chip for portable... by ogre_codes on Tuesday November 10, 2020 @05:49PM (#25053140)
It's even easier to explain than that. The RAM is integrated into the CPU. While there are a few SKUs here, Apple only designed and built one CPU with 16GB RAM. The CPUs are binned. The CPUs where all RAM passed testing are sold as 16GB, the 8GB SKUs had a failure on one bank of RAM.

There are no 32 or 64 GB models because Apple isn't making a CPU with 32 or 64GB of RAM yet.

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Re:Apple unveils M1, its first system-on-a-chip for portable... by hajile on Tuesday November 10, 2020 @06:06PM (#25053300)
It looked to me that they were placing 2 DDR4 modules beside the chip.

https://images.anandtech.com/doci/16226/2020-11-10%2019_08_4...

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Re:Apple unveils M1, its first system-on-a-chip for portable... by ogre_codes on Tuesday November 10, 2020 @06:12PM (#25053355)
Well maybe? Huh. I don't know now, certainly looks like it.
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