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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 code | CPU Family | CPUID | Core name |
| AAA1B AA | Third-Generation Opteron | | |
| AAA4B AA | Third-Generation Opteron | | |
| AAAFB AA | Third-Generation Opteron | | |
| AAAWB AA | Phenom X4
Third-Generation Opteron | | |
| AAAZB AA | Phenom X4 | F22 (DR-B2) | Agena |
| AAAZB AA | Third-Generation Opteron | | Agena |
| AACQC AC | Third-Generation Opteron | | |
| AACSC AC | Phenom II X4 | | |
| AACTC AC | Phenom II X4 | | |
| AACYC AC | Athlon II X3
Phenom II X2
Phenom II X3
Phenom II X4 | | |
| AACZC AC | Phenom II X3
Phenom II X4 | | |
| AADAC AD | Athlon II X3
Athlon II X4 | | |
| AAEEC AE | Athlon II X2
K10 Sempron | | |
| ACADD CA | Six-Core Opteron | | |
| CAA1B AA | Phenom X3 | | |
| CAAAB AA | Phenom X4 | | |
| CAANB AA | Third-Generation Opteron | | |
| CAAVB AA | Third-Generation Opteron | | |
| CAAWB AA | Phenom X3
Phenom X4 | | Agena |
| CAAZB AA | Phenom X4 | F22 (DR-B2) | Agena |
| CAAZB AA | Phenom X3
Third-Generation Opteron | | Agena |
| CACVC AC | Phenom II X4 | | |
| CACYC AC | Phenom II X2
Phenom II X3
Phenom II X4 | | |
| CACZC AC | Athlon X2
Phenom II X3
Phenom II X4 | | |
| CADAC AD | Athlon II X4 | | |
| CAEEC AE | Athlon II X2 | | |
| GAAAB AA | Third-Generation Opteron | | |
| GAAFB AA | Third-Generation Opteron | | |
| JAAAB AA | Phenom X3
Phenom X4 | | Kuma |
| JAAAB AA | Athlon X2 | F23 (DR-B3) | Kuma |
| JAAFB AA | Phenom X3 | | Agena |
| JAAFB AA | Phenom X4 | F23 (DR-B3) | Agena |
| JAAHB AA | Phenom X3
Phenom X4
Third-Generation Opteron | | |
| JAAPB AA | Athlon X2 | | Kuma |
| JAAWB AA | Phenom X4 | | Agena |
| NAEIC AE | Athlon II X2 | | |
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