3 ms·

Its not priced in a linear way wrt to bom cost.

• aurareturn 1y ago
  That's because memory channels cost money. Memory controllers are more complex. Lastly, chips that can make use of high bandwidth VRAM are both of the above. Memory chips are a commodity, that I agree. Though HBM is trending towards not being a commodity.
  • throwaway48476 1y ago
    Memory controllers are die area. mm2 die space is linear bom cost. DRAM+mm2 bom will have a different slope to just DRAM bom but still basically linear. Nonlinear pricing is pure market segmentation.
    • aurareturn 1y ago
      Memory controllers are die area. mm2 die space is linear bom cost. Ignoring the design and platform support that comes with higher bandwidth memory controllers.
      • throwaway48476 1y ago
        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.
        • aurareturn 1y ago
          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.
          • throwaway48476 1y ago
            Memory controllers are copy paste. It's not more complex. It's more expensive in a linear way wrt bom.