this post was submitted on 12 Nov 2023
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[–] [email protected] 1 points 10 months ago

Technically yes

Techunically IMPOSSIBLE. Not on any existing APU chips or Zen4c chiplet. There's no TSV contacts to connect the cache.

It'll require a complete redesign of the chip. But it's possible if AMD did that.

but AMD had used monolithic dies for their APUs

Irrelevant.

add cache on top of a bigger piece of silicon than a CPU chiplet would need a redesign at least

No. Size is completely irrelevant. Redesign is needed indeed, but it's the APU that needed redesign, not the cache.

and it would jack up prices quite significantly

No. The filler silicon ALSO USED ON CURRENT X3D costs a few cents at most. Even 200mm² costs pennies.