AMD K6-II

K6 ◄ K6-II ► K6-III

The K6-2 was an x86 microprocessor introduced by AMD on May 28, 1998, and available in speeds ranging from 266 to 550 MHz. An enhancement of the original K6, the K6-2 introduced AMD's 3DNow! SIMD instruction set, featured a larger 64 KiB Level 1 cache (32 KiB instruction and 32 KiB data), and an upgraded system-bus interface called Super Socket 7, which was backward compatible with older Socket 7 motherboards. It was manufactured using a 0.25 micrometre process, ran at 2.2 volts, and had 9.3 million transistors.

The K6-2 was designed as a competitor to Intel's flagship processor, the significantly more expensive Pentium II.

Chomper/Chomper-XT

AMD K6-II 300 MHz

CPU-Z:

AMD K6-II/300AFR-66
Specification Details

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Type	Central processing unit / CPU
Family	AMD K6-II
CPU part number	AMD K6-II/300AFR-66
Introduction	05/28/98
Manufacturing Date	29th week of 1999
Package	321-pin CPGA
Socket	Socket 7
Dimensions	49,5 mm x 49,5 mm
Microarchitecture	K6
Codename	Chomper-XT
Manufacturing process	250 nm
Transistors	9300000
Instruction set	CISC
Frequency	300 MHz
Bus Speed	66 MHz
Multiplier	x4.5
L1 Cache	32 KB instruction cache, 32 KB data cache
Data width	32 Bit
Floating Point Unit (FPU)	Integrated
Power consumption	10 Watt
Vcore	2.2 Volt

AMD K6-II 350 MHz

AMD K6-II/350AFR
Specification Details

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Type	Central processing unit / CPU
Family	AMD K6-II
CPU part number	AMD-K6-II/350AFR
Introduction	08/27/98
Manufacturing Date	5th week of 1999
Package	321-pin CPGA
Socket	Socket 7
Dimensions	49,5 mm x 49,5 mm
Microarchitecture	K6
Codename	Chomper-XT
Manufacturing process	250 nm
Transistors	9300000
Instruction set	CISC
Frequency	350 MHz
Bus Speed	100 MHz
Multiplier	x3.5
L1 Cache	32 KB instruction cache, 32 KB data cache
Data width	32 Bit
Floating Point Unit (FPU)	Integrated
Power consumption	12 Watt
Vcore	2.2 Volt

AMD K6-II 366 MHz

Kingston TurboChip 366 MHz

Kindly donated by stephan4520 from the Planet3DNow forum.

AMD K6-II/366AFR
Specification Details

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Type	Central processing unit / CPU
Family	AMD K6-II
CPU part number	AMD K6-II/366AFR
Introduction	11/16/1998
Manufacturing Date	?
Package	321-pin CPGA
Socket	Socket 7
Dimensions	49,5 mm x 49,5 mm
Microarchitecture	K6
Codename	Chomper-XT
Manufacturing process	250 nm
Transistors	9300000
Frequency	366 MHz
Bus Speed	66 MHz
Multiplier	x5.5
L1 Cache	32 KB instruction + 20 KB, 32 KB data cache
Data width	32 Bit
Floating Point Unit (FPU)	Integrated
Power consumption	12 Watt
Vcore	2.2 Volt

AMD K6-II 400 MHz

AMD K6-II/400AFQ
Specification Details

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Type	Central processing unit / CPU
Family	AMD K6-II
CPU part number	AMD K6-II/400AFQ
Introduction	05/28/98
Manufacturing Date	17th week of 1999
Package	321-pin CPGA
Socket	Socket 7
Dimensions	49,5 mm x 49,5 mm
Microarchitecture	K6
Codename	Chomper-XT
Manufacturing process	250 nm
Transistors	9300000
Instruction set	CISC
Frequency	400 MHz
Bus Speed	66/100 MHz
Multiplier	x6/x4
L1 Cache	32 KB instruction cache, 32 KB data cache
Data width	32 Bit
Floating Point Unit (FPU)	Integrated
Power consumption	14 Watt
Vcore	2.2 Volt

AMD K6-II/400AFR
Specification Details

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Type	Central processing unit / CPU
Family	AMD K6-II
CPU part number	AMD K6-II/400AFR
Introduction	11/16/1998
Manufacturing Date	21st week of 1999
Package	321-pin CPGA
Socket	Socket 7
Dimensions	49,5 mm x 49,5 mm
Microarchitecture	K6
Codename	Chomper-XT
Manufacturing process	250 nm
Transistors	9300000
Frequency	40 MHz
Bus Speed	66 MHz 100 MHz
Multiplier	6 4
L1 Cache	32 Bit data cache, 20 KB pre-decode cache
Data width	32 Bit
Floating Point Unit (FPU)	Integrated
Power consumption	10 Watt
Vcore	2.2 Volt

AMD K6-II 450 MHz

Picture kindly donated by Edvinas Juodeikis. Thank you very much!

AMD-K6-II/450AHX
Specification Details

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Type	Central processing unit / CPU
Family	AMD K6-II
CPU part number	AMD-K6-II/450AHX
Introduction	02/26/1999
Manufacturing Date	27th week of 1999
Package	321-pin CPGA
Socket	Socket 7
Dimensions	49,5 mm x 49,5 mm
Microarchitecture	K6
Codename	Chomper-XT
Manufacturing process	250 nm
Transistors	9300000
Frequency	450 MHz
Bus Speed	100 MHz
Multiplier	x4.5
L1 Cache	32 KB instruction cache, 32 KB data cache
Data width	32 Bit
Floating Point Unit (FPU)	Integrated
Power consumption	17 Watt
Vcore	2.4 Volt

AMD K6-II 500 MHz

CPU-Z:

AMD K6-II/500AFX
Specification Details

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Type	Central processing unit / CPU
Family	AMD K6-II
CPU part number	AMD-K6-II/500AFX
Introduction	08/30/99
Manufacturing Date	8th week of 2001
Package	321-pin CPGA
Socket	Socket 7
Dimensions	49,5 mm x 49,5 mm
Microarchitecture	K6
Codename	Chomper-XT
Manufacturing process	250 nm
Transistors	9300000
Instruction set	CISC
Frequency	500 MHz
Bus Speed	100 MHz
Multiplier	x5
L1 Cache	32 KB instruction cache, 32 KB data cache
Data width	32 Bit
Floating Point Unit (FPU)	Integrated
Power consumption	12 Watt
Vcore	2.2 Volt

AMD K6-II 550 MHz

Kindly donated by Pauli Rautakorpi.

AMD K6-II/550AGR
Specification Details

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Type	Central processing unit / CPU
Family	AMD K6-II
CPU part number	AMD K6-II/550AGR
Introduction	02/22/2000
Manufacturing Date	5th week of 2000
Package	321-pin CPGA
Socket	Socket 7
Dimensions	49,5 mm x 49,5 mm
Microarchitecture	K6
Codename	Chomper-XT
Manufacturing process	250 nm
Transistors	9300000
Instruction set	CISC
Frequency	550 MHz
Bus Speed	100 MHz
Multiplier	x5.5
L1 Cache	32 KB instruction cache, 32 KB data cache
Data width	32 Bit
Floating Point Unit (FPU)	Integrated
Power consumption	15 Watt
Vcore	2.3 Volt

Unlisted models:

Chomper: 233 MHz, 266 MHz, 300 MHz, 333 MHz
Chomper-XT: 266 MHz, 333 MHz, 380 MHz, 475 MHz, 533 MHz

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