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AMD K6-2
  AMD-K6-2/266AFR, Printed Logo
  AMD-K6-2/266AFR
  AMD-K6-2/300AFR
  AMD-K6-2/333AFR-66
  AMD-K6-2/350AFR
  AMD-K6-2/400AFQ
  AMD-K6-2/400AFR
  AMD-K6-2/450AHX
  AMD-K6-2/450AFX
  AMD-K6-2/500AFX
  AMD-K6-2/475ACK
  AMD-K6-2/300AMZ
  AMD-K6-2/350AMZ
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The AMD K6-2 Processor
The K6-2 was a significant improvement over the K6. It built upon the K6's processing core, with the addition of 21 new instructions called "3D Now!". These are SIMD (Single Instruction Multiple Data) instructions designed to enhance the 3D geometry capability of the chip's floating point unit. This allowed the K6-2 to overcome the handicap of the slow (relative to Intel) CPU which the K6 owned.
 
The K6-2 also saw the introduction of a 100 MHz front side bus. This was only available to owners of new Super Socket 7 motherboards which also included features such as AGP. All of these features helped to give the K6-2 performance fast enough to be a credible challenger to the dominant Pentium II. Performance of the two chips was broadly similar: the K6-2 tending to be faster for general-purpose computing, the Intel part clearly superior at floating-point tasks. The K6-2 was a very successful chip and provided AMD with the marketing base and the financial stability it would need to introduce the Athlon.

The K6-2 was originally manufactured in speeds of 266 & 300 MHz in May 1998. The 300 MHz chip saw the introduction of the 100 MHz bus over the conventional 66 MHz bus used by the 266 MHz chip. August 1998 a 333 MHz version on a 95 MHz bus has been released and was quickly followed by a 350 MHz version on the 100 MHz bus. November 1998 saw the release of the 366, 380 and 400 MHz versions of the chip. This has been followed by the release of a 450 MHz K6-2 in February 1999 and the 500 MHz version in August 1999.

References:  AMD K6-2 Tech Docs  Geek.com  Processor Emporum
AMD-K6-2/266AFR, Printed Logo
AMD-K6-2/266AFR, Printed Logo Top Side
AMD-K6-2/266AFR
2.2V CORE/3.3V I/O
A 9824APKW
(m) (c) 1998 AMD
Win95Logo
MALAY
AMD-K6-2/266AFR, Printed Logo 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:9,300,000
Circuit Size:0.25
Core / I/O Voltage:2.2 / 3.3 V
Introduced:05/1998
Manufactured:week 24/1998
Made in:Malaysia
L1 Cache:32+32 KB
CPU Code:Chompers
Package Type:Ceramic
PGA-321
Heat Spreader
Socket: 7
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AMD-K6-2/266AFR
AMD-K6-2/266AFR Top Side
AMD-K6-2/266AFR
2.2V CORE/3.3V I/O
A 9828DPNW
(m) (c) 1998 AMD
Win95Logo
MALAY
AMD-K6-2/266AFR Back Side
add comment
Core Frequency:266 MHz
Board Frequency:66 MHz
Clock Multiplier:4.0
Data bus (ext.):64 Bit
Address bus:32 Bit
Transistors:9,300,000
Circuit Size:0.25
Core / I/O Voltage:2.2 / 3.3 V
Introduced:05/1998
Manufactured:week 28/1998
Made in:Malaysia
L1 Cache:32+32 KB
CPU Code:Chompers
Package Type:Ceramic
PGA-321
Heat Spreader
Socket: 7
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AMD-K6-2/300AFR
AMD-K6-2/300AFR Top Side
AMD-K6-2/300AFR
2.2V CORE/3.3V I/O
A 9834MPM
(m) (c) 1998 AMD
Win95Logo
MALAY
AMD-K6-2/300AFR Back Side
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Core Frequency:300 MHz
Board Frequency:100 MHz
Clock Multiplier:3.0
Data bus (ext.):64 Bit
Address bus:32 Bit
Transistors:9,300,000
Circuit Size:0.25
Core / I/O Voltage:2.2 / 3.3 V
Introduced:05/1998
Manufactured:week 34/1998
Made in:Malaysia
L1 Cache:32+32 KB
CPU Code:Chompers
Package Type:Ceramic
PGA-321
Heat Spreader
Socket: 7
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AMD-K6-2/333AFR-66
AMD-K6-2/333AFR-66 Top Side
AMD-K6-2/333AFR-66
2.2V CORE/3.3V I/O
A 9847EPAW
(m) (c) 1998 AMD
Win95Logo
MALAY
AMD-K6-2/333AFR-66 Back Side
add comment
Core Frequency:333 MHz
Board Frequency:66 MHz
Clock Multiplier:5.0
Data bus (ext.):64 Bit
Address bus:32 Bit
Transistors:9,300,000
Circuit Size:0.25
Core / I/O Voltage:2.2 / 3.3 V
Introduced:05/1998
Manufactured:week 47/1998
Made in:Malaysia
L1 Cache:32+32 KB
CPU Code:Chompers
Package Type:Ceramic
PGA-321
Heat Spreader
Socket: 7
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AMD-K6-2/350AFR
AMD-K6-2/350AFR Top Side
AMD-K6-2/350AFR
2.2V CORE/3.3V I/O
A 9916BPDW
(m) (c) 1998 AMD
Win95Logo
MALAY
AMD-K6-2/350AFR Back Side
add comment
Core Frequency:350 MHz
Board Frequency:100 MHz
Clock Multiplier:3.5
Data bus (ext.):64 Bit
Address bus:32 Bit
Transistors:9,300,000
Circuit Size:0.25
Core / I/O Voltage:2.2 / 3.3 V
Introduced:08/1998
Manufactured:week 16/1999
Made in:Malaysia
L1 Cache:32+32 KB
CPU Code:Chompers
Package Type:Ceramic
PGA-321
Heat Spreader
Socket: 7
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AMD-K6-2/400AFQ
AMD-K6-2/400AFQ Top Side
AMD-K6-2/400AFQ
2.2V CORE/3.3V I/O
A 9923CPBW
(m) (c) 1998 AMD
Win95Logo
MALAY
AMD-K6-2/400AFQ Back Side
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Core Frequency:400 MHz
Board Frequency:100 MHz
Clock Multiplier:4.0
Data bus (ext.):64 Bit
Address bus:32 Bit
Transistors:9,300,000
Circuit Size:0.25
Core / I/O Voltage:2.2 / 3.3 V
Introduced:November 16, 1998
Manufactured:week 23/1999
Made in:Malaysia
L1 Cache:32+32 KB
CPU Code:Chompers
Package Type:Ceramic
PGA-321
Heat Spreader
Socket: 7
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AMD-K6-2/400AFR
AMD-K6-2/400AFR Top Side
AMD-K6-2/400AFR
2.2V CORE/3.3V I/O
A 9938APFW
(m) (c) 1998 AMD
Win95Logo
MALAY
AMD-K6-2/400AFR Back Side
add comment
Core Frequency:400 MHz
Board Frequency:100 MHz
Clock Multiplier:4.0
Data bus (ext.):64 Bit
Address bus:32 Bit
Transistors:9,300,000
Circuit Size:0.25
Core / I/O Voltage:2.2 / 3.3 V
Introduced:11/1998
Manufactured:week 38/1999
Made in:Malaysia
L1 Cache:32+32 KB
CPU Code:Chompers
Package Type:Ceramic
PGA-321
Heat Spreader
Socket: 7
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AMD-K6-2/450AHX
AMD-K6-2/450AHX Top Side
AMD-K6-2/450AHX
2.4V CORE/3.3V I/O
A 9922CPDW
(m) (c) 1998 AMD
Win95Logo
MALAY
AMD-K6-2/450AHX Back Side
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Core Frequency:450 MHz
Board Frequency:100 MHz
Clock Multiplier:4.5
Data bus (ext.):64 Bit
Address bus:32 Bit
Transistors:9,300,000
Circuit Size:0.25
Core / I/O Voltage:2.4 / 3.3 V
Introduced:02/1999
Manufactured:week 22/1999
Made in:Malaysia
L1 Cache:32+32 KB
CPU Code:Chompers
Package Type:Ceramic
PGA-321
Heat Spreader
Socket: 7
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AMD-K6-2/450AFX
AMD-K6-2/450AFX Top Side
AMD-K6-2/450AFX
2.2V CORE/3.3V I/O
A 0016MPMW
(m) (c) 1998 AMD
Win95Logo
ASSEMBLED IN MALAYSIA
AMD-K6-2/450AFX Back Side
add comment
Core Frequency:450 MHz
Board Frequency:100 MHz
Clock Multiplier:4.5
Data bus (ext.):64 Bit
Address bus:32 Bit
Transistors:9,300,000
Circuit Size:0.25
Core / I/O Voltage:2.2 / 3.3 V
Introduced:02/1999
Manufactured:week 16/2000
Made in:Malaysia
L1 Cache:32+32 KB
CPU Code:Chompers
Package Type:Ceramic
PGA-321
Heat Spreader
Socket: 7
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AMD-K6-2/500AFX
AMD-K6-2/500AFX Top Side
AMD-K6-2/500AFX
2.2V CORE/3.3V I/O
A 0001DPLW
(m) (c) 1998 AMD
Win95Logo
ASSEMBLED IN MALAYSIA
AMD-K6-2/500AFX Back Side
add comment
Core Frequency:500 MHz
Board Frequency:100 MHz
Clock Multiplier:5.0
Data bus (ext.):64 Bit
Address bus:32 Bit
Transistors:9,300,000
Circuit Size:0.25
Core / I/O Voltage:2.2 / 3.3 V
Introduced:08/1999
Manufactured:week 01/2000
Made in:Malaysia
L1 Cache:32+32 KB
CPU Code:Chompers
Package Type:Ceramic
PGA-321
Heat Spreader
Socket: 7
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AMD-K6-2/475ACK
AMD-K6-2/475ACK Top Side
AMD-K6-2/475ACK
2.0V CORE/3.3V I/O
A 0009EPAW
(m) (c) 1998 AMD
Win95Logo
ASSEMBLED IN MALAYSIA
AMD-K6-2/475ACK Back Side
add comment
Core Frequency:475 MHz
Board Frequency:95 MHz
Clock Multiplier:5.0
Data bus (ext.):64 Bit
Address bus:32 Bit
Transistors:9,300,000
Circuit Size:0.25
Core / I/O Voltage:2.0 / 3.3 V
Introduced:02/1999
Manufactured:week 09/2000
Made in:Malaysia
L1 Cache:32+32 KB
CPU Code:Chompers
Package Type:Ceramic
PGA-321
Heat Spreader
Socket: 7
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AMD-K6-2/300AMZ
AMD-K6-2/300AMZ Top Side
AMD-K6-2/300AMZ
1.9V CORE/3.3V I/O
A 0048DPMW 7
(m) (c) 1998 AMD
Win95Logo
ASSEMBLED IN MALAYSIA
AMD-K6-2/300AMZ Back Side
add comment
Core Frequency:300 MHz
Board Frequency:100 MHz
Clock Multiplier:3.0
Data bus (ext.):64 Bit
Address bus:32 Bit
Transistors:9,300,000
Circuit Size:0.25
Core / I/O Voltage:1.9 / 3.3 V
Introduced:05/1998
Manufactured:week 48/2000
Made in:Malaysia
L1 Cache:32+32 KB
CPU Code:Chompers
Package Type:Ceramic
PGA-321
Heat Spreader
Socket: 7
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AMD-K6-2/350AMZ
AMD-K6-2/350AMZ Top Side
AMD-K6-2/350AMZ
1.9V CORE/3.3V I/O
A 0214FPBW 7
(m) (m) 1998 AMD
Win95Logo
ASSEMBLED IN MALAYSIA
AMD-K6-2/350AMZ Back Side
add comment
Core Frequency:350 MHz
Board Frequency:100 MHz
Clock Multiplier:3.5
Data bus (ext.):64 Bit
Address bus:32 Bit
Transistors:9,300,000
Circuit Size:0.25
Core / I/O Voltage:1.9 / 3.3 V
Introduced:08/1998
Manufactured:week 14/2002
Made in:Malaysia
L1 Cache:32+32 KB
CPU Code:Chompers
Package Type:Ceramic
PGA-321
Heat Spreader
Socket: 7
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