A slocket is a PCB with an edge connector, just like current graphics cards. Thi... | Hacker News

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		bryanlarsen on May 19, 2015 \| parent \| context \| favorite \| on: AMD's high-bandwidth memory explained A slocket is a PCB with an edge connector, just like current graphics cards. This is a multi-chip module or MCM (http://en.wikipedia.org/wiki/Multi-chip_module). Intel also uses them to put the North bridge on the same package as the CPU for its mobile CPU's. There are several innovative aspects about this MCM, but MCM's have been around for a long time. A single GDDR5 chip is 32bit. GPU's use many chips in parallel to achieve wider buses.

spikels on May 19, 2015 [–]

I guess the difference here is the substrate is another silicon chip rather than PCB or substitute. Pretty cool. Must have been some significant engineering challenges.

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