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AMD K6
  AMD-K6/PR2-166ALR
  AMD-K6-166ALR, Early Version
  AMD-K6-166ALR
  AMD-K6-166ALR, Engraved Logo
  AMD-K6-200ALR, 'K6' Logo
  AMD-K6-200ALR
  AMD-K6-200ALYD
  AMD-K6-233ANR, 'K6' Logo
  AMD-K6-233ANR
  AMD-K6/266AFR
  AMD-K6/300AFR
  AMD-K6-233ADZ
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The AMD K6 Processor
After AMD's plans with the K5 turned into a debacle, AMD again claimed that they had the solution to make them more than just discount alternatives to Intel: A chip with the power of a Pentium Pro, with MMX support and intended to fit into a standard socket 7. AMD delivered its much anticipated K6 chip in April of 1997, beating Intel's Pentium II to the market by a month.
 
AMD showed their commitment to establishing themselves in the market when they purchased NexGen in 1996 and with it, the design for the Nx686 processor. NexGen had been intending to market this chip in its own socket, but AMD changed the design to fit the standard socket 7, added MMX support, and renamed it the K6. Despite the name implying a design evolving from the K5, it is in fact a totally different design that was created by the NexGen team and adapted after the AMD purchase.
 
The K6 was originally launched running at speeds of 166 and 200 MHz in April 1997. It was followed by a 233 MHz version later in the summer of 1997. The release of the 266 MHz version of this chip was not until spring 1998 when AMD were able to move to the 0.25 micron manufacturing process. The final iteration of the K6 design was released in May 1998 running at 300 MHz and continued with the K6-2.

Initially, the AMD K6 processors used Pentium II Rating (PR2) to designate their speed. The PR2 rating was dropped because the rated frequency of the processor was the same as the real frequency. This item was made in the month the K6 was released (week 17/1997 = April 21st - 27th, 1997) and has the initial PR2 marking.

References:  AMD K6 Tech Docs  Byte.com: AMD K6 Takes On Intel P6  PC Guide  Processor Emporum  Intel's Enemy No. 1: The AMD K6 CPU
AMD-K6/PR2-166ALR
AMD-K6/PR2-166ALR Top Side
AMD-K6/PR2-166ALR
2.9V
B 9717BJB
(m) (c) 1997 AMD
Win95Logo
MALAY
AMD-K6/PR2-166ALR Back Side
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Core Frequency:166 MHz
Board Frequency:66 MHz
Clock Multiplier:2.5
Data bus (ext.):64 Bit
Address bus:32 Bit
Transistors:8,800,000
Circuit Size:0.35
Core / I/O Voltage:2.9 / 3.3 V
Introduced:April 2, 1997
Manufactured:week 17/1997
Made in:Malaysia
L1 Cache:32+32 KB
CPU Code:K6 (Model 6)
Package Type:Ceramic
PGA-321
Heat Spreader
Socket: 7
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AMD-K6-166ALR, Early Version
AMD-K6-166ALR, Early Version Top Side
AMD-K6-166ALR
2.9V
B 9713EIA
(m) (c) 1997 AMD
Win95Logo
MALAY
AMD-K6-166ALR, Early Version Back Side
An early K6, made in March 1997, shortly befor the official introduction in April. It still misses the 'Malay' marking under the Windows 95 logo and the I/O voltage marking later K6-166 have.
 
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Core Frequency:166 MHz
Board Frequency:66 MHz
Clock Multiplier:2.5
Data bus (ext.):64 Bit
Address bus:32 Bit
Transistors:8,800,000
Circuit Size:0.35
Core / I/O Voltage:2.9 / 3.3 V
Introduced:April 2, 1997
Manufactured:week 13/1997
Made in:Malaysia
L1 Cache:32+32 KB
CPU Code:K6 (Model 6)
Package Type:Ceramic
PGA-321
Heat Spreader
Socket: 7
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AMD-K6-166ALR
AMD-K6-166ALR Top Side
AMD-K6-166ALR
2.9V CORE/3.3V I/O
C 9738EPPW
(m) (c) 1997 AMD
Win95Logo
MALAY
AMD-K6-166ALR Back Side
add comment
Core Frequency:166 MHz
Board Frequency:66 MHz
Clock Multiplier:2.5
Data bus (ext.):64 Bit
Address bus:32 Bit
Transistors:8,800,000
Circuit Size:0.35
Core / I/O Voltage:2.9 / 3.3 V
Introduced:April 2, 1997
Manufactured:week 38/1997
Made in:Malaysia
L1 Cache:32+32 KB
CPU Code:K6 (Model 6)
Package Type:Ceramic
PGA-321
Heat Spreader
Socket: 7
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AMD-K6-166ALR, Engraved Logo
AMD-K6-166ALR, Engraved Logo Top Side
AMD-K6-166ALR
2.9V CORE/3.3V I/O
C 9738GP4W
(m) (c) 1997 AMD
Win95Logo
MALAY
AMD-K6-166ALR, Engraved Logo Back Side
This one has a strange engraved logo, not like the K6-2 chips have, but quite different.
 
add comment
Core Frequency:166 MHz
Board Frequency:66 MHz
Clock Multiplier:2.5
Data bus (ext.):64 Bit
Address bus:32 Bit
Transistors:8,800,000
Circuit Size:0.35
Core / I/O Voltage:2.9 / 3.3 V
Introduced:April 2, 1997
Manufactured:week 38/1997
Made in:Malaysia
L1 Cache:32+32 KB
CPU Code:K6 (Model 6)
Package Type:Ceramic
PGA-321
Heat Spreader
Socket: 7
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AMD-K6-200ALR, 'K6' Logo
AMD-K6-200ALR, 'K6' Logo Top Side
K6/200ALR
2.9V CORE/3.3V I/O
C 9743DPKW
(m) (c) 1997 AMD
Win95Logo
MALAY
AMD-K6-200ALR, 'K6' Logo Back Side
This chip has the K6 marketing logo.
 
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Core Frequency:200 MHz
Board Frequency:66 MHz
Clock Multiplier:3.0
Data bus (ext.):64 Bit
Address bus:32 Bit
Transistors:8,800,000
Circuit Size:0.35
Core / I/O Voltage:2.9/ 3.3 V
Introduced:April 2, 1997
Manufactured:week 43/1997
Made in:Malaysia
L1 Cache:32+32 KB
CPU Code:K6 (Model 6)
Package Type:Ceramic
PGA-321
Heat Spreader
Socket: 7
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AMD-K6-200ALR
AMD-K6-200ALR Top Side
AMD-K6-200ALR
2.9V CORE/3.3V I/O
C 9742DPJW
(m) (c) 1997 AMD
Win95Logo
MALAY
AMD-K6-200ALR Back Side
add comment
Core Frequency:200 MHz
Board Frequency:66 MHz
Clock Multiplier:3.0
Data bus (ext.):64 Bit
Address bus:32 Bit
Transistors:8,800,000
Circuit Size:0.35
Core / I/O Voltage:2.9/ 3.3 V
Introduced:April 2, 1997
Manufactured:week 42/1997
Made in:Malaysia
L1 Cache:32+32 KB
CPU Code:K6 (Model 6)
Package Type:Ceramic
PGA-321
Heat Spreader
Socket: 7
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AMD-K6-200ALYD
AMD-K6-200ALYD Top Side
AMD-K6-200ALYD
2.9V CORE/3.3V I/O
C 9824EPBW
(m) (c) 1997 AMD
Win95Logo
MALAY
AMD-K6-200ALYD Back Side
add comment
Core Frequency:200 MHz
Board Frequency:66 MHz
Clock Multiplier:3.0
Data bus (ext.):64 Bit
Address bus:32 Bit
Transistors:8,800,000
Circuit Size:0.35
Core / I/O Voltage:2.9/ 3.3 V
Introduced:April 2, 1997
Manufactured:week 24/1998
Made in:Malaysia
L1 Cache:32+32 KB
CPU Code:K6 (Model 6)
Package Type:Ceramic
PGA-321
Heat Spreader
Socket: 7
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AMD-K6-233ANR, 'K6' Logo
AMD-K6-233ANR, 'K6' Logo Top Side
K6/233ANR
3.2V CORE/3.3V I/O
C 9744DJCW
(m) (c) 1997 AMD
Win95Logo
MALAY
25755 2698 CA
AMD-K6-233ANR, 'K6' Logo Back Side
This chip has the K6 marketing logo.
 
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Core Frequency:233 MHz
Board Frequency:66 MHz
Clock Multiplier:3.5
Data bus (ext.):64 Bit
Address bus:32 Bit
Transistors:8,800,000
Circuit Size:0.35
Core / I/O Voltage:3.2/3.3 V
Introduced:April 2, 1997
Manufactured:week 43/1997
Made in:Malaysia
L1 Cache:32+32 KB
CPU Code:K6 (Model 6)
Package Type:Ceramic
PGA-321
Heat Spreader
Socket: 7
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AMD-K6-233ANR
AMD-K6-233ANR Top Side
AMD-K6-233ANR
3.2V CORE/3.3V I/O
C 9818BPBW
(m) (c) 1997 AMD
Win95Logo
MALAY
AMD-K6-233ANR Back Side
add comment
Core Frequency:233 MHz
Board Frequency:66 MHz
Clock Multiplier:3.5
Data bus (ext.):64 Bit
Address bus:32 Bit
Transistors:8,800,000
Circuit Size:0.35
Core / I/O Voltage:3.2 / 3.3 V
Introduced:April 2, 1997
Manufactured:week 18/1998
Made in:Malaysia
L1 Cache:32+32 KB
CPU Code:K6 (Model 6)
Package Type:Ceramic
PGA-321
Heat Spreader
Socket: 7
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AMD-K6/266AFR
AMD-K6/266AFR Top Side
AMD-K6/266AFR
2.2V CORE/3.3V I/O
A 9827CPQW
(m) (c) 1997 AMD
Win95Logo
MALAY
AMD-K6/266AFR Back Side
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Core Frequency:266 MHz
Board Frequency:66 MHz
Clock Multiplier:4.0
Data bus (ext.):64 Bit
Address bus:32 Bit
Transistors:8,800,000
Circuit Size:0.25
Core / I/O Voltage:2.2 / 3.3 V
Introduced:January 6, 1998
Manufactured:week 27/1998
Made in:Malaysia
L1 Cache:32+32 KB
CPU Code:K6 (Little Foot - Model 7)
Package Type:Ceramic
PGA-321
Heat Spreader
Socket: 7
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AMD-K6/300AFR
AMD-K6/300AFR Top Side
AMD-K6/300AFR
2.2V CORE/3.45V I/O
A 9834APHW
(m) (c) 1997 AMD
Win95Logo
MALAY
AMD-K6/300AFR Back Side
add comment
Core Frequency:300 MHz
Board Frequency:100 MHz
Clock Multiplier:4.0
Data bus (ext.):64 Bit
Address bus:32 Bit
Transistors:8,800,000
Circuit Size:0.25
Core / I/O Voltage:2.2 / 3.45 V
Introduced:April 7, 1998
Manufactured:week 34/1998
Made in:Malaysia
L1 Cache:32+32 KB
CPU Code:K6 (Little Foot - Model 7)
Package Type:Ceramic
PGA-321
Heat Spreader
Socket: 7
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AMD-K6-233ADZ
AMD-K6-233ADZ Top Side
AMD-K6-233ADZ
MOBILE 9W
2.1V CORE/3.3V I/O
A 9811GPDW
(m) (c) 1997 AMD
Win95Logo
MALAY
AMD-K6-233ADZ Back Side
add comment
Core Frequency:233 MHz
Board Frequency:66 MHz
Clock Multiplier:3.5
Data bus (ext.):64 Bit
Address bus:32 Bit
Transistors:8,800,000
Circuit Size:0.35
Core / I/O Voltage:2.1 / 3.3 V
Introduced:April 2, 1997
Manufactured:week 11/1998
Made in:Malaysia
L1 Cache:32+32 KB
CPU Code:K6 (Model 6)
Package Type:Ceramic
PGA-321
Heat Spreader
Socket: 7
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