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Because when you make it denser, you can cut the CPU into smaller parts, which decreases costs when you make it less dense, it can clock up higher, but you wil

by iopq 3y ago

Because when you make it denser, you can cut the CPU into smaller parts, which decreases costs when you make it less dense, it can clock up higher, but you will have fewer cores per mm^2 AMD went with both approaches, where their hybrid CPU will have densely packed low speed Zen 4C cores and some high speed Zen 4 cores to boost at the highest frequency

cubefox 3y ago
Increasing density has caused chip cost per FLOP/s to decrease exponentially over the last decades. But nowadays the price per transistor doesn't go down as fast with increased density like it used to. E.g. new Nvidia GPUs are getting smaller for the same price, which means they are getting more expensive for the same size. At some point, the price per transistor will actually increase. Then Moore's Law (the exponential increase in transistor density) will probably stop, simply because it's not economical to produce slower chips for the same price. (Maybe the increased power efficiency will still make density scaling worth it for a little while longer, but probably not a lot longer.)
- jpgvm 3y ago
  This isn't due to fundamental cost increasing per transistor though, this is because NVidia changed their pricing strategy to decouple it from that. They are simply making greater % profit/transitor.
  - FirmwareBurner 3y ago
    > this is because NVidia changed their pricing strategy to decouple it from that Because neither AMD nor Intel can come withing striking distance of Nvidia's flagships, and seeing how their silicone flies off the shelves, they have also adjusted their pricing to match their relative performance to Nvidia.
    - iopq 3y ago
      You're talking about one product, which is the 4090, which is 0.88% of all GPUs used by Steam users [0] The top GPU is the 3060, at 4.89% which both Intel and AMD match with their offerings [1] The top AMD dGPU is still the RX 580 at 0.97% [0] https://store.steampowered.com/hwsurvey/Steam-Hardware-Software-Survey-Welcome-to-Steam https://store.steampowered.com/hwsurvey/Steam-Hardware-Softw... [1] https://youtu.be/aXU9wee0tec?t=834 https://youtu.be/aXU9wee0tec?t=834

by iopq 3y ago

cubefox 3y ago

Increasing density has caused chip cost per FLOP/s to decrease exponentially over the last decades. But nowadays the price per transistor doesn't go down as fast with increased density like it used to. E.g. new Nvidia GPUs are getting smaller for the same price, which means they are getting more expensive for the same size. At some point, the price per transistor will actually increase. Then Moore's Law (the exponential increase in transistor density) will probably stop, simply because it's not economical to produce slower chips for the same price. (Maybe the increased power efficiency will still make density scaling worth it for a little while longer, but probably not a lot longer.)

jpgvm 3y ago
This isn't due to fundamental cost increasing per transistor though, this is because NVidia changed their pricing strategy to decouple it from that. They are simply making greater % profit/transitor.
- FirmwareBurner 3y ago
  > this is because NVidia changed their pricing strategy to decouple it from that Because neither AMD nor Intel can come withing striking distance of Nvidia's flagships, and seeing how their silicone flies off the shelves, they have also adjusted their pricing to match their relative performance to Nvidia.
  - iopq 3y ago
    You're talking about one product, which is the 4090, which is 0.88% of all GPUs used by Steam users [0] The top GPU is the 3060, at 4.89% which both Intel and AMD match with their offerings [1] The top AMD dGPU is still the RX 580 at 0.97% [0] https://store.steampowered.com/hwsurvey/Steam-Hardware-Software-Survey-Welcome-to-Steam https://store.steampowered.com/hwsurvey/Steam-Hardware-Softw... [1] https://youtu.be/aXU9wee0tec?t=834 https://youtu.be/aXU9wee0tec?t=834