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Stepping codes of AMD K7 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 the list of AMD K7 (see below), K8 and K10 stepping codes. This data was also used to build timetables of K7, K8 and K10 stepping codes. The lists are not complete. I doubt they will ever be complete, though I'm going to look for missing stepping codes and CPUIDs, and I will certainly add more data in the future. If you have a K7 processor or microprocessor picture with stepping code not listed below please use AMD stepping code submission page to submit the code.

Stepping codeCPU FamilyCPUIDCore nameCore stepping
ACAADuron630 (A0)Spitfire (Model 3) 
ACXJBAthlon XP Thoroughbred (Model 8) 
ADEAAthlon Thunderbird (Model 4) 
ADEARAthlon642Thunderbird (Model 4) 
ADFAAthlon Thunderbird (Model 4) 
ADFARAthlon Thunderbird (Model 4) 
ADYHAAthlon MP
Athlon XP
Athlon XP-M (K7)
Sempron (K7)		 Barton
Barton (Model 10)		 
AEEAAthlon Thunderbird (Model 4) 
AFEAAthlon Thunderbird (Model 4) 
AFFAAthlon642 (A4)Thunderbird (Model 4) 
AFFARAthlon Thunderbird (Model 4) 
AFGAAthlon Thunderbird (Model 4) 
AGBCAMobile Athlon 4 Palomino (Model 6) 
AGDCAAthlon MP
Mobile Athlon 4		 Palomino (Model 6) 
AGFCAMobile Duron Palomino 
AGFCAAthlon XP661 (A1)Palomino 
AGGAAthlon642 (A4)Thunderbird (Model 4) 
AGHDAMobile Athlon 4 Palomino (Model 6) 
AGKDAAthlon
Athlon MP		 Palomino (Model 6) 
AGKFAAthlon MP Palomino (Model 6) 
AGKFAMobile Athlon 4662 (A5)Palomino (Model 6) 
AGKGAAthlon
Athlon MP
Mobile Athlon 4		 Palomino (Model 6) 
AGKGAAthlon XP662 (A5)Palomino (Model 6) 
AGLHAAthlon XP Palomino (Model 6) 
AGNGAAthlon
Athlon MP
Athlon XP		 Palomino (Model 6) 
AGOGAAthlon MP
Athlon XP
Mobile Athlon 4		 Palomino (Model 6) 
AGOGAAthlon662 (A5)Palomino (Model 6) 
AGOIAAthlon
Athlon MP
Mobile Athlon 4		 Palomino
Palomino (Model 6)		 
AGOIA
Athlon XP
Mobile Duron		662 (A5)Palomino
Palomino (Model 6)		 
AGTIAAthlon XP Palomino (Model 6) 
AHAAAMobile Duron   
AHFAAthlon Thunderbird (Model 4) 
AHHAADuron
Mobile Duron		670Morgan (Model 7) 
AHLCAMobile Duron Morgan
Morgan (Model 7)		 
AHLCADuron671 (A1)Morgan
Morgan (Model 7)		 
AHLDAMobile Duron Morgan (Model 7) 
AHLDADuron671 (A1)Morgan (Model 7) 
AHMBAMobile Duron   
AHNADuron Morgan (Model 7) 
AHSDADuron
Mobile Duron		 Morgan (Model 7) 
AIPAAAthlon XP-M (K7) Thoroughbred 
AIPCAAthlon XP
Athlon XP-M (K7)		680 (A0)Thoroughbred
Thoroughbred (Model 8)		 
AIPDAAthlon XP-M (K7) Thoroughbred 
AIRCAAthlon XP680 (A0)Thoroughbred (Model 8) 
AIRDAAthlon XP-M (K7) Thoroughbred 
AIRGAAthlon XP
Athlon XP-M (K7)		680 (A0)Thoroughbred
Thoroughbred (Model 8)		 
AIUAAAthlon XP6AABarton 
AIUABAthlon XP Thoroughbred (Model 8) 
AIUCBAthlon XP
Athlon XP-M (K7)		681 (B0)Barton (Model 10)
Thoroughbred
Thoroughbred (Model 8)		 
AIUGAAthlon MP
Athlon XP
Athlon XP-M (K7)		680 (A0)Thoroughbred
Thoroughbred (Model 8)		 
AIUGBAthlon XP
Athlon XP-M (K7)		 Thoroughbred
Thoroughbred (Model 8)		 
AIUHBAthlon MP
Athlon XP		 Thoroughbred
Thoroughbred (Model 8)		 
AIUHBAthlon XP-M (K7)681 (B0)Thoroughbred
Thoroughbred (Model 8)		 
AIUXBAthlon XP Thoroughbred (Model 8) 
AIXHBAthlon XP-M (K7) Thoroughbred
Thoroughbred (Model 8)		 
AIXHBAthlon XP681 (B0)Thoroughbred
Thoroughbred (Model 8)		 
AIXIBAthlon MP Thoroughbred
Thoroughbred (Model 8)		 
AIXIBAthlon XP
Athlon XP-M (K7)		681 (B0)Thoroughbred
Thoroughbred (Model 8)		 
AIXJBAthlon MP
Athlon XP		 Thoroughbred
Thoroughbred (Model 8)		 
AIXJBAthlon XP-M (K7)681Thoroughbred
Thoroughbred (Model 8)		 
AJEAAthlon Thunderbird (Model 4) 
AJFAAthlon Thunderbird (Model 4) 
AJFARAthlon Thunderbird (Model 4) 
AKAADuron630 (A0)Spitfire (Model 3) 
AKBADuron
Mobile Duron		 Spitfire (Model 3) 
AKBARDuron Spitfire (Model 3) 
AKCAMobile Duron Spitfire (Model 3) 
AKCADuron631 (A2)Spitfire (Model 3) 
AKCARDuron Spitfire (Model 3) 
ALCADuron Spitfire (Model 3) 
AMCADuron Spitfire (Model 3) 
ANCADuron Spitfire (Model 3) 
ANDADuron631Spitfire (Model 3) 
AQFAAthlon642 (A4)Thunderbird (Model 4) 
AQGAAthlon Thunderbird (Model 4) 
AQUCAAthlon XP-M (K7)6A0Barton
Barton (Model 10)		 
AQUCAAthlon XP Barton
Barton (Model 10)		 
AQUDAAthlon XP Barton (Model 10) 
AQXCAAthlon XP6A0Barton
Barton (Model 10)
Thorton (Model 10)		 
AQXCAAthlon XP-M (K7) Barton
Barton (Model 10)
Thorton (Model 10)		 
AQXDAAthlon XP6A0Barton
Barton (Model 10)
Thoroughbred (Model 8)		 
AQXDAAthlon XP-M (K7) Barton
Barton (Model 10)
Thoroughbred (Model 8)		 
AQXEAAthlon XP6A0Barton
Barton (Model 10)
Thorton (Model 10)		 
AQXEAAthlon MP
Athlon XP-M (K7)		 Barton
Barton (Model 10)
Thorton (Model 10)		 
AQXFAAthlon XP6A0Barton
Barton (Model 10)		 
AQXFAAthlon XP-M (K7) Barton
Barton (Model 10)		 
AQYFAAthlon XP-M (K7) Barton
Barton (Model 10)		 
AQYFAAthlon XP6A0Barton
Barton (Model 10)		 
AQYHAAthlon XP6A0Barton
Barton (Model 10)
Thorton (Model 10)		 
AQYHAAthlon MP
Athlon XP-M (K7)
Sempron (K7)		 Barton
Barton (Model 10)
Thorton (Model 10)		 
AQZEAAthlon XP6A0Barton (Model 10) 
AQZFA
Athlon XP
Athlon XP-M (K7)		6A0Barton
Barton (Model 10)
Thoroughbred
Thorton (Model 10)		 
AQZFAAthlon MP Barton
Barton (Model 10)
Thoroughbred
Thorton (Model 10)		 
ARGAAthlon642 (A4)Thunderbird
Thunderbird (Model 4)		 
ARHAADuron Morgan (Model 7) 
ARKGAAthlon XP Palomino (Model 6) 
ARNGAAthlon XP Palomino (Model 6) 
AROIAAthlon XP Palomino (Model 6) 
ASHHAAthlon642 (A4)Thunderbird (Model 4) 
ATRCAAthlon XP Thoroughbred (Model 8) 
AVFAAthlon Thunderbird (Model 4) 
AVHAAthlon Thunderbird (Model 4) 
AVIAAthlon642 (A4)Thunderbird (Model 4) 
AXHAAthlon642 (A4)Thunderbird (Model 4) 
AXIAAthlon642 (A4)Thunderbird
Thunderbird (Model 4)		 
AXIARAthlon Thunderbird (Model 4) 
AYHAAthlon642 (A4)Thunderbird (Model 4) 
AYHJAAthlon644 (A9)Thunderbird (Model 4) 
AYHJARAthlon Thunderbird (Model 4) 
BCXJBSempron (K7)681 (B0)Thoroughbred (Model 8) 
BFFAAthlon Thunderbird (Model 4) 
BIXJBSempron (K7)681 (B0)Thoroughbred (Model 8) 
BJJAGeode NX Thoroughbred 
BJJFGeode NX681 (B0)Thoroughbred 
BNDADuron Spitfire (Model 3) 
BQGAAthlon Thunderbird (Model 4) 
BVFAAthlon Thunderbird (Model 4) 
BXHAAthlon   
BXIAAthlon Thunderbird (Model 4) 
CQYHAAthlon XP Thorton (Model 10) 
DHLCADuron Morgan (Model 7) 
DYHJAAthlon Thunderbird (Model 4) 
EYHJAAthlon Thunderbird (Model 4) 
FYHJAAthlon Thunderbird (Model 4) 
HGOIAMobile Duron   
IDYHAAthlon XP-M (K7) Barton 
IQXBAAthlon XP Thoroughbred 
IQXEAAthlon XP-M (K7)6A0Barton 
IQYFAAthlon XP
Athlon XP-M (K7)		 Barton
Barton (Model 10)		 
IQYHAAthlon XP-M (K7)6A0Barton
Barton (Model 10)		 
IQYHAAthlon XP
Sempron (K7)		 Barton
Barton (Model 10)		 
JIUCBAthlon XP Thoroughbred (Model 8) 
JIUGBAthlon XP Thoroughbred (Model 8) 
JIUHBAthlon XP681 (B0)Thoroughbred
Thoroughbred (Model 8)		 
JIXHBAthlon XP Thoroughbred (Model 8) 
JIXIBAthlon XP Thoroughbred (Model 8) 
KDYHASempron (K7)6A0Thorton (Model 10) 
KIUHBAthlon XP Thoroughbred
Thoroughbred (Model 8)		 
KIXHBAthlon XP Thoroughbred (Model 8) 
KIXIBAthlon XP Thoroughbred (Model 8) 
KIXJBAthlon XP Thoroughbred (Model 8) 
KQYHAAthlon XP6A0Barton (Model 10)
Thorton (Model 10)		 
KQYHASempron (K7) Barton (Model 10)
Thorton (Model 10)		 
KQZFAAthlon XP Barton (Model 10) 
LIUCBAthlon XP-M (K7) Thoroughbred 
MCXJBDuron Applebred (Model 8) 
MIUGADuron Applebred (Model 8) 
MIUHBDuron Applebred (Model 8) 
MIXHBDuron Applebred (Model 8) 
MIXIBDuron Applebred (Model 8) 
MIXJBDuron Applebred (Model 8) 
NIUHBAthlon XP681 (B0)Thoroughbred (Model 8) 
PQZFAAthlon XP Barton (Model 10) 
RIRGAAthlon XP Thoroughbred (Model 8) 
RIUGAAthlon XP Thoroughbred (Model 8) 
RIWGAAthlon XP Thoroughbred (Model 8) 
UQYHAAthlon XP   

AQGA

2006-07-14 06:57:52
Posted by: Root

I have such CPU:
====
AMD Athlon tm
A0900AMT3B
AQGA0105PPDW
94725150514
(m)(c)1999AMD
====
I think that this is Thunderbird...

AGKGA

2006-07-14 07:01:10
Posted by: Root

AMD Athlon tm
AHL1000AUT3B
AGKGA0141MPMW
Y7197360741
(m)(c)1999 AMD
This is Palomino? (square core), but on ceramic PCB... And it isn't Athlon XP, but simple Athlon. So in some sources it is known as new version of Thunderbird...

Response: It's a Mobile Athlon 4, they are based on Palomino core

AQYHA Stepping Sempron 2800

2007-01-08 07:32:16
Posted by: Chris

I have a Sempron 2800 with these markings:

SDC2800DUT3D 2448372H40993
AQYHA O432VPMW

This stepping wasn't in your list. Is it a good chip?

AFGA

2009-03-31 14:22:48
Posted by: Neon

Here is A0950AMT3B AFGA 0103VPFW 27016 Thunderbird 642 A4

AFGA

MIUGA

2009-07-11 13:57:54
Posted by: Akos Fekete (akosf)

AMD Duron TM
DHD1400DLV1C T599607240580
MIUGA 0335SPMW (m) (c) 1999 AMD

BQGA

2009-09-11 19:50:43
Posted by: Neon

Here is A0950AMT3B BQGA 0101VPAW 27016 Thunderbird

BQGA

AGHDA

2010-01-26 20:12:12
Posted by: Neon

Here is AHM1000AVS3B AGHDA 0129MPMW 27100 Corvette 661 A2

AGHDA

AXHA

2010-02-28 01:16:12
Posted by: Neon_WA

A1000AMT3B
AXHA 0105SPAW
Y5997170436

package 27016

AVHAR

2010-11-13 14:58:19
Posted by: Neon

Here is A1000AMT3B AVHAR 0102WPMW 27016 Thunderbird 642 A4

AVHAR

BXHA

2013-02-19 16:16:13
Posted by: Neon

Here is A1200AMS3B BXHA 0107APEW 27016 Thunderbird 642 A4

BXHA

Last modified: 22 Feb 2013
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