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> this is an HBM type architecture You'd think so, but seems most people[1] think it's just LPDDR wired to the SoC using the standard protocol, inside the sam
by fulafel 6y ago
> this is an HBM type architecture
You'd think so, but seems most people[1] think it's just LPDDR wired to the SoC using the standard protocol, inside the same package. (Though it might use > 1 channel I guess?)
[1] eg in the spec table here https://www.anandtech.com/show/16235/apple-intros-first-three-apple-silicon-macs-late-2020-macbook-air-13inch-macbook-pro-mac-mini https://www.anandtech.com/show/16235/apple-intros-first-thre... - an interesing thinb in the mini spec table is also the 10x downgrade of the ethernet speed.
- floatboth 6y agoLPDDR channels are weird. https://www.anandtech.com/show/16226/apple-silicon-m1-a14-deep-dive https://www.anandtech.com/show/16226/apple-silicon-m1-a14-de... shows "8x 16b LPDDR4X channels" Which would be the same width as dual channel DDR4 – 8x16 == 2x64 :) Also it's completely ridiculous that some people think it might be HBM. The presentation slide (shown in both anandtech articles) very obviously shows DDR style chips, with their own plastic packaging. That is not how HBM looks :) Also HBM would noticeably raise the price.