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.
DRAM is so cheap and ubiquitous that they will probably keep using that, barring any massive breakthroughs. The “persistence after power-off” is nice to have, but not strictly needed.
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.
It’s already fourth tier after L1, L2, L3 caches.
Maybe something like optane will make a comeback. Having 16gb of soldered RAM and 500gb of relatively slow, but inexpensive optane RAM would be great.
DRAM is so cheap and ubiquitous that they will probably keep using that, barring any massive breakthroughs. The “persistence after power-off” is nice to have, but not strictly needed.
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.