title: Smaller model number and larger stepping value mean newer CPU version in /proc/cpuinfo in Linux?
body: <p>I am checking the CPU information on two Linux VMs, on one VM, I see:</p>
  
  <pre><code>processor       : 1
  vendor_id       : GenuineIntel
  cpu family      : 6
  model           : 37
  model name      : Intel(R) Xeon(R) CPU E5-2680 0 @ 2.70GHz
  stepping        : 1
  cpu MHz         : 2699.999
  cache size      : 20480 KB
  fpu             : yes
  fpu_exception   : yes
  cpuid level     : 13
  wp              : yes
  </code></pre>
  
  <p>On another one, I see:</p>
  
  <pre><code>processor       : 1
  vendor_id       : GenuineIntel
  cpu family      : 6
  model           : 26
  model name      : Intel(R) Xeon(R) CPU E5-2680 0 @ 2.70GHz
  stepping        : 4
  cpu MHz         : 2700.000
  cache size      : 20480 KB
  fpu             : yes
  fpu_exception   : yes
  cpuid level     : 13
  wp              : yes
  </code></pre>
  
  <p>May I ask if smaller model number and larger stepping value mean newer CPU version?</p>