this post was submitted on 08 Nov 2023
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Holy crap, apple charges $200 to add 8GB of RAM. I just bought 32GB of DDR5 for the Framework I have on order for $95.
DDR5 runs at 52GB/s. Apple uses RAM that runs at up to 800GB/s (if you have enough, gets faster the more you have since it runs in parallel... but it's never as slow as DDR5).
I'm really interested in this kinda thing, do you have sources I can read?
What I found was DDR5 runs at a max of 64 GB/s, and the M2 Pro runs at 400 GB/s. ~~I can't find anything about it being faster due to running in parallel.~~ Edit:I found it, looks like the M2 Ultra runs at 800 GB/s, cool. If I'm reading correctly, this was done by connecting two M2 Pros
Also, the PS5 allegedly has over 400GB/s bandwidth just for perspective
The PS5 uses a unified 16gb of GDDR6, which has really high bandwidth for graphics applications. Apple is full of shit about their LPDDR5.