linux - How to understand cpu family/model/stepping fields in /proc/cpuinfo

  • Victor Sorokin

    I have following in cpuinfo:

    processor   : 0
    vendor_id   : AuthenticAMD
    cpu family  : 15
    model       : 107
    model name  : AMD Athlon(tm) 64 X2 Dual Core Processor 5600+
    stepping    : 2

    According to Wikipedia page there are two kinds of 5600+ -- one of 90nm technology, another of 65nm. How can I understand which one I have? There seem to be no direct correspondence between contents of cpuinfo and info on Wikipedia page.

    AMD site seems to use some other naming scheme for processors too.

    How can I map values of family, model and stepping from cpuinfo to the data available on Wikipedia/AMD?

  • Answers
  • Mokubai

    This page suggest that the cpuid tool may be able to list more in-depth details of your cpu.

    One of the lines it lists as an output is

    (simple synth) = AMD Dual Core Opteron (Italy/Egypt JH-E1), 940-pin, 90nm

    So I'd either try that tool or have a look for it in whatever package manager your version of Linux uses.

  • Related Question

    linux - Determine Socket from /proc/cpuinfo
  • David Grant

    Is there a simple way to determine the CPU socket from the output of /proc/cpuinfo. Determining the type of processor is simple enough, but the processor I have (Celeron) has two different possible sockets. The output of /proc/cpuinfo is:

    processor : 0
    vendor_id : GenuineIntel
    cpu family : 15
    model : 4
    model name : Intel(R) Celeron(R) CPU 2.66GHz
    stepping : 9
    cpu MHz : 2672.411
    cache size : 256 KB
    fdiv_bug : no
    hlt_bug : no
    f00f_bug : no
    coma_bug : no
    fpu : yes
    fpu_exception : yes
    cpuid level : 5
    wp : yes
    flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat     pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx lm constant_tsc up pebs bts pni dtes64 monitor ds_cpl tm2 cid cx16 xtpr lahf_lm
    bogomips : 5344.82
    clflush size : 64
    power management:

    I've looked on the Intel processor finder web site with appropriate filters, but the stepping values do not appear to match anything.

  • Related Answers
  • Iain

    lshw will show you the socket

    sudo lshw -class cpu