[klodolph]

That’s a very satisfying answer. I’m aware that the processes for logic, flash, and DRAM have some significant differences but I don’t know much more than “differences exist” (e.g. and therefore you have a different die for CPU and flash).

My reasoning is, at best, “SSDs have gotten cheaper, SSDs are kind of like RAM, shouldn’t RAM get cheaper?” and I know that’s not exactly an expert opinion.

[sroussey]

SSDs are non-volatile — they don’t need power and constant refreshing like DRAM does. So you can do different things based on a different heat and power budget, like going 3D and adding more layers that would kill regular ram or a cpu, etc.

[wmf]

NAND flash went from one layer to 128 layers over the last decade while DRAM is still one layer.