4 ms·

> Why not cram as many cores as possible into a single server? Manufacturing yields

• Dylan16807 4y ago
  That's why you limit die size to a certain extent. But that's not a limiting factor on cores per server. You can cram many more 150mm² dies into your server's sockets than you can actually feed with power and cooling and RAM.
  • xxs 4y ago
    A major issue is the cache coherency. If you dont have coherency, effectively you have an architecture that just multiple distinct servers.
    • Dylan16807 4y ago
      You can run coherency protocols across dies. How many cores you decide to make coherent is largely unrelated to how your die yields work out, as far as I know. Not that it matters either way for this discussion? Whether it's "one server" in that 2U box, or "twenty servers" in that box, you're still shoving in lots of cores and lots of watts to get that density up.