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by matthewmacleod 1462 days ago
I would love to see an AMD chip as fully integrated as an M1, moving the RAM fully on die and part of the Infinity fabric directly. The insane memory bandwidth of the M1 is what keeps it competitive.

I know this has been said a million times, but it's worth repeating because somehow the idea is still floating around – the M series very much does not have the RAM on-die. It's not even in the same package – it's standard LPDDR4/5 sitting off to the side with a lot of channels.

1 comments

So the novel ("novel") idea that M1 is bringing is using high bandwidth LPDDR5 for desktop CPU memory, where it's currently typically used only for mobile CPUs. [1] Intel and AMD CPUs technically support LPDDRx, but no manufacturer exploits this for some reason. [2]

[1]: https://www.bgr.in/top-products/best-phones-with-lpddr5-ram-...

[2]: See other thread. :)