Stepping codes of AMD K10 microprocessors

Over time I collected more than 1,500 stepping code/date code combinations for different K7, K8 and K10 microprocessors. I also gathered CPUID information for some of these processors. That data was used to compile a list of AMD K7, K8 and K10 stepping codes. This data was also used to build timetables of K7, K8 and K10 stepping codes. The lists and timetables are not complete, especially lists and timetibles for recently released microprocessors. If you have a K10 processor or microprocessor picture with stepping code not listed below, please use AMD stepping code submission page to submit the code and/or picture.

Stepping codeCPU FamilyCPUIDCore name
AAA1B AAThird-Generation Opteron  
AAA4B AAThird-Generation Opteron  
AAAFB AAThird-Generation Opteron  
AAAWB AAPhenom X4
Third-Generation Opteron
  
AAAZB AAPhenom X4F22 (DR-B2)Agena
AAAZB AAThird-Generation Opteron Agena
AACQC ACThird-Generation Opteron  
AACSC ACPhenom II X4  
AACTC ACPhenom II X4  
AACYC ACAthlon II X3
Phenom II X2
Phenom II X3
Phenom II X4
  
AACZC ACPhenom II X3
Phenom II X4
  
AADAC ADAthlon II X3
Athlon II X4
  
AAEEC AEAthlon II X2
K10 Sempron
  
ACADD CASix-Core Opteron  
CAA1B AAPhenom X3  
CAAAB AAPhenom X4  
CAANB AAThird-Generation Opteron  
CAAVB AAThird-Generation Opteron  
CAAWB AAPhenom X3
Phenom X4
 Agena
CAAZB AAPhenom X4F22 (DR-B2)Agena
CAAZB AAPhenom X3
Third-Generation Opteron
 Agena
CACVC ACPhenom II X4  
CACYC ACPhenom II X2
Phenom II X3
Phenom II X4
  
CACZC ACAthlon X2
Phenom II X3
Phenom II X4
  
CADAC ADAthlon II X4  
CAEEC AEAthlon II X2  
GAAAB AAThird-Generation Opteron  
GAAFB AAThird-Generation Opteron  
JAAAB AAPhenom X3
Phenom X4
 Kuma
JAAAB AAAthlon X2F23 (DR-B3)Kuma
JAAFB AAPhenom X3 Agena
JAAFB AAPhenom X4F23 (DR-B3)Agena
JAAHB AAPhenom X3
Phenom X4
Third-Generation Opteron
  
JAAPB AAAthlon X2 Kuma
JAAWB AAPhenom X4 Agena
NAEIC AEAthlon II X2  

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