AMD K6 266 - AMD-K6/266AFR

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Specifications

General information
Type	CPU / Microprocessor
Market segment	Desktop
Family	AMD K6
CPU part number	AMD-K6/266AFR is an OEM/tray microprocessor
Frequency (MHz) ?	266
Bus speed (MHz) ?	66
Clock multiplier ?	4
Package	321-pin ceramic staggered PGA 1.95" x 1.95" (4.95 cm x 4.95 cm)
AMD Package number	26031
Socket	Socket 7
Introduction date	7-Apr-98
Price at introduction	$156

Architecture / Microarchitecture
Microarchitecture	K6
CPUID	570
Manufacturing process	0.25 micron 8.8 million transistors
Data width	32 bit
Floating Point Unit	Integrated
Level 1 cache size ?	32 KB code with pre-decode cache 32 KB writeback data
Physical memory (GB)	4
Features	MMX multimedia instructions
Low power features	Halt state Stop Grant state ? Stop Grant Inquire state Stop Clock state

Electrical/Thermal parameters
V core (V) ?	2.2 ± 0.1
V I/O or secondary (V)	3.3V (3.135V - 3.6V)
Minimum/Maximum operating temperature (°C) ?	0 - 70
Minimum/Typical/Maximum power dissipation (W)	2.25 (Stop Clock mode) / 8.75 / 14.55

CPUs, related to AMD K6 266 MHz (AMD-K6/266AFR)

Model Freq. L1
cache Features

AMD K6 family, Socket 7

   AMD K6 200 MHz (AMD-K6-200ALR) 200 MHz 64 KB

   AMD K6 200 MHz (AMD-K6-200ALYD) 200 MHz 64 KB

   AMD K6 200 MHz (AMD-K6/200AFR) 200 MHz 64 KB

   AMD K6 200 MHz (AMD-K6/PR2-200ALR) 200 MHz 64 KB

   AMD K6 200 MHz (K6/200ALR) 200 MHz 64 KB

   AMD K6 233 MHz (AMD-K6-233ANR) 233 MHz 64 KB

   AMD K6 233 MHz (AMD-K6/233AFR) 233 MHz 64 KB

   AMD K6 233 MHz (AMD-K6/233APR) 233 MHz 64 KB

   AMD K6 233 MHz (K6/233ANR) 233 MHz 64 KB

   AMD K6 300 MHz (AMD-K6/300AFR) 300 MHz 64 KB

Other families, K6 micro-architecture, Socket 7

   AMD K6-2 200 MHz (AMD-K6-2/200AFR) 200 MHz 64 KB 3DNow

   AMD K6-2 233 MHz (AMD-K6 3D/233AFR) 233 MHz 64 KB 3DNow

   AMD K6-2 233 MHz (AMD-K6-2/233AFR) 233 MHz 64 KB 3DNow

   AMD K6-2 266 MHz (AMD-K6 3D/266AFR) 266 MHz 64 KB 3DNow

   AMD K6-2 266 MHz (AMD-K6-2/266AFR) 266 MHz 64 KB 3DNow

   AMD K6-2 300 MHz (AMD-K6-2/300AFR-66) 300 MHz 64 KB 3DNow

   AMD K6-2 333 MHz (AMD-K6-2/333AFR-66) 333 MHz 64 KB 3DNow

   AMD K6-2 366 MHz (AMD-K6-2/366AFR) 366 MHz 64 KB 3DNow

• Highlighted numbers and features indicate whether specific processor performs better or worse than K6 266 MHz (AMD-K6/266AFR)

• Within each category, the CPUs are sorted from slower (at the top) to faster (at the bottom)

• List of related CPUs is not complete.

• Features abbreviations:

3DNow - 3DNow! instructions

Pictures (4)

Engraved markings
266 MHz 321-pin ceramic staggered PGA

Black ink markings
266 MHz 321-pin ceramic staggered PGA Black printing


For your consideration
2009-02-10 19:48:15 Posted by: Richard Lebelinski
Black printed AMD K6 266MHZ Richard Lebelinski (UK) Leba837@hotmail.com

Retail box
2009-07-12 12:27:04 Posted by: Neon
Notice the picture of black top K6 included on the retail box. Also, AMD used their slogan, "The Smart Choice" during the K6 era.

Benchmarks

Compare results with tested CPUs from one of the following families:
To compare benchmark results with all other microprocessors please

Tested processor

CPU ID:

0570h

CPU vendor string:

AuthenticAMD

CPU name string:

AMD-K6tm w/ multimedia extensions

Integer performance

Part number		Result
IBM 6x86MX 225MHz 6X86MX-300GP (2.9V 75 MHZ) ?		115.3%
AMD K6 300MHz AMD-K6/300AFR ?		111%
AMD K6 266MHz AMD-K6/266AFR ?		100%
AMD Mobile K6 266MHz AMD-K6/266ACZ ?		99.8%
IBM 6x86MX 6X86MX-233GP (2.9V 75 MHZ) ?		93.3%
AMD K5 133MHz AMD-K5-PR200ABX ?		92.1%
AMD K5 133MHz AMD-K5-PR200ABX ?		91.9%
Rise Technology MP6 200MHz MP6440DPF-ES (2.7V 2X100 MHZ) ?		89.7%

Floating Point performance

Part number		Result
AMD K6 300MHz AMD-K6/300AFR ?		112.6%
AMD K6 266MHz AMD-K6/266AFR ?		100%
AMD Mobile K6 266MHz AMD-K6/266ACZ ?		100%
AMD K6 233MHz AMD-K6/233APR ?		87.4%
Intel Pentium MMX 233MHz BP80503233 ?		81.7%
AMD K6 200MHz K6/200ALR ?		74.8%
AMD K6 200MHz AMD-K6/PR200 (BLACK ES) ?		73.8%
Intel Pentium MMX 200MHz FV80503200 ?		70%

MMX / SSE / SSE2 performance

Part number		Result
AMD K6 300MHz AMD-K6/300AFR ?		112.4%
Intel Pentium MMX 233MHz BP80503233 ?		110.9%
AMD K6 266MHz AMD-K6/266AFR ?		100%
AMD Mobile K6 266MHz AMD-K6/266ACZ ?		99.9%
Rise Technology MP6 200MHz MP6440DPF-ES (2.7V 2X100 MHZ) ?		98.3%
Rise Technology MP6 200MHz MP6441RPFH4-Q ?		98.2%
Rise Technology MP6 200MHz MP6441DPFH4-Q ?		98%
Intel Pentium MMX 200MHz FV80503200 ?		95.2%

CPU ID (1)

View / search public CPUID submissions | Check your CPU

NOTE: CPU ID information below was taken from one CPU and may include features that are not present in all different steppings of the AMD K6 266 CPU.

Manufacturer:	AMD
CPU Family:	K6
Model Number:	266
Frequency:	2 MHz

Part number:	AMD-K6/266AFR
Stepping Code:	A 9840BPXW
Comment:	Little Foot 26031
Submitted by:	Neon

General information
Vendor:	AuthenticAMD
Processor name (BIOS):	AMD-K6tm w/ multimedia extensions
Processor type:	Original OEM Processor
CPUID signature:	570
Family:	5 (05h)
Model:	7 (07h)
Stepping:	0 (00h)

Cache: L1 data L1 instruction

Size: 32 KB 32 KB

Associativity: 2-way set associative 2-way set associative

Line size: 32 bytes 32 bytes

Lines per tag: 2 2

Instruction set extensions Additional instructions

MMX CMPXCHG8B

Major features Other features

On-chip Floating Point Unit Debugging extensions

Machine check exception

Model-specific registers

Page-size extensions (4MB pages)

Time stamp counter

Virtual 8086-mode enhancements

Comments (0)

Last modified: 10 Dec 2011

AMD K6 266 - AMD-K6/266AFR

Specifications

Pictures (4)

Benchmarks

Integer performance

Floating Point performance

MMX / SSE / SSE2 performance

CPU ID (1)

Comments (0)

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