By identical, I mean having the same signature - family, model, stepping and brand string of the CPU (which essentially identifies a CPU model uniquely)

If I'm not wrong, a CPU package goes into a CPU socket on a motherboard.

edit: oops, I forgot to add that I was looking for info related to Intel server CPUs (Xeon and similar). Nothing specific, just wanted to know whether CPU packages in servers have always had exactly the same CPUs. Thanks!

  • Please reduce the scope of your question. CPU manufactures use both heterogeneous and homogeneous multi-core designs. What problem are you trying to solve?
    – Ramhound
    Apr 15, 2016 at 13:28
  • @Ramhound, I need to make a list of CPUs in a server host. Just wondering whether I can assume that all CPUs are the same in a CPU package, less work for me.
    – Bruce
    May 12, 2016 at 7:17
  • It's not clear what you mean by a CPU package. You can assume a Xeon processor of a particular model will be identical to another Xeon processor of the same model. Any differences that might exist wouldn't even be detectable
    – Ramhound
    May 12, 2016 at 11:37

1 Answer 1



Example: Some of the SoC phones which have 4 fast and one slow (and more power efficient) core. Example: Tegra 4.

  • On a side note OEMs advertise such phones ( with 4 fast and 4 slow cores) as Octa Core yet slow and fast cores don't work at same time meaning while they do have 8 cores in theory, they work as Quad Core in real life Apr 15, 2016 at 10:29
  • Note: the question is tagged Intel, so I am assuming the OP is concerned with Intel x86. So far Intel has not adopted heterogeneous multicore (though due to process variation it might be possible to use turboboost more often on one core than another; the same would apply to user overclocking).
    – user180742
    Apr 15, 2016 at 12:21
  • I saw the tag Intel, but nothing about Intel (x86, Itanium,, ...) was mentioned in the question. Closest Intel answer I have is the i7 9x0 series which turbo's on at most one core.
    – Hennes
    Apr 15, 2016 at 12:51
  • just edited the question
    – Bruce
    May 12, 2016 at 7:18

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