So many misconceptions here about DRAM. DRAM is miraculously cheap. The process probably costs about $1.50 to $2 per GB, the rest is indeed profit. That nets

So many misconceptions here about DRAM. DRAM is miraculously cheap. The process probably costs about $1.50 to $2 per GB, the rest is indeed profit. That nets them maybe $4,000 per wafer - and that includes all the testing, slicing, packaging etc. An average CPU chip in your laptop is about the same size as maybe 3 DRAM chips which cost around $20. DRAM runs on a separate process which is dominated by the difficulty of building the capacitors. These are roughly the shape of a pencil (long narrow hexagons) where the central structure which holds the capacitor needs to be etched to perfection in a process that can take days. The transistors underneath are, at that scale, about as large as the chad from a paper hole punch. The capacitors are just about as narrow as material science (limit to voltage arcing through the insulation layers) can make them so there is glacially slow progress in shrinking DRAM further. Meanwhile the transistors are at extreme limits of resolution for liquid immersion processing, as also are the lines needed to join the rows and columns. Getting those perfect requires very specialized and competent processing. They are not easy, second rate circuits. They are a completely separate branch of the silicon world. Unfortunately since they don't scale much any more, current design methods were mature 8 years ago, the only way you get more of them is to build new factories. That means it is a seller's market in a game where building another fab costs $10B and will only succeed if staffed by really expert people. So, it is generally profitable. The 3 vendors cannot easily undercut each other since they all have roughly the same limits, and any attempt to flood the market takes 4 years to build and everyone can see it coming. So there you are. DRAM is the pivotal technology of the current computer era. Fixing that will most likely require breakthroughs in fundamental memory technology - or a reason for demand to collapse.