3 ms·

But you said I can get a 7nm one that is pretty close to the same thing. Why don't they sell me one of those in a laptop ready to go?

• sudosysgen 6y ago
  Because it would be a monumental waste of money to develop a 7nm version of the laptop chips for what, 3 months?
  • grecy 6y ago
    But surely the 7nm part has been around long enough, they should have been designing and validating it months before the part even existed...
    • sudosysgen 6y ago
      Well, no. The 7nm part is specifically meant for desktop computers. The part meant for laptop computers, that has graphics, uses a different memory controller, has different I/O characteristics, and uses very different cache structures, was always meant for 5nm only. They both, however, share almost the exact same CPU logic, which is why we know that performance characteristics will be essentially identical. You could ship a laptop with the 7nm chip, and it was done with Zen 1, but then you will have very high RAM power usage, you will need dedicated graphics with Non-unified memory, you will miss out on some accelerators, and you will some I/O issues Because of all these problems, no one thinks it worth it to design a laptop against the 7nm parts, and it's not possible to build a 7nm version of the laptop part without very high investment.