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And this is not also linear or fixed cost, why?

I don't think you know how industry pricing works. Wafers have a price, double mm2, double the price of chip in bom.



Yes. Bigger die size. More complex memory controller designs. More memory lanes. More software support for higher memory lanes. All adds up.

I'm explaining why despite memory being a commodity, high memory bandwidth VRAM cost is not cheap.


Memory controllers are copy paste. It's not more complex.

It's more expensive in a linear way wrt bom.




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