this post was submitted on 25 Feb 2025
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Eventually most system RAM will have to be packaged anyway. Physics dictates that one pays a penalty going over pins and mobo traces, and it gets more severe with every advancement.
It's possible that external RAM will eventually evolve into a "2nd tier" of system memory, for background processes, spillover, inactive programs/data, things like that.
That would be fine. But as long as it can use it as RAM and not just a staging ground.
Keep in mind that it would be pretty slow, as it doesn’t make sense to burn power and die area on a wide secondary bus.