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AMD-K6/PR2-166ALR
General Info
Designer	AMD
Manufacturer	AMD
Model Number	AMD-K6/PR2-166ALR
Part Number	AMD-K6/PR2-166ALR
Market	Desktop
Introduction	April 2, 1997 (announced) April 2, 1997 (launched)
Shop	Amazon
General Specs
Family	K6
Series	Desktop K6
Locked	No
Frequency	166.66 MHz
Bus type	FSB
Bus speed	66.66 MHz
Bus rate	66.66 MT/s
Clock multiplier	2.5
CPUID	560
Microarchitecture
Microarchitecture	K6
Core Name	6k86
Core Family	5
Core Model	6
Process	350 nm
Transistors	8,800,000
Technology	CMOS
Die	162 mm²
Word Size	32 bit
Cores	1
Threads	1
Max Memory	4 GiB
Multiprocessing
Max SMP	1-Way (Uniprocessor)
Electrical
Power dissipation	17.2 W
Vcore	2.9 V ± 5%
VI/O	3.3 V ± 5%
Tcase	0 °C – 70 °C
Tstorage	-65 °C – 150 °C

AMD-K6/PR2-166ALR was a 32-bit x86 microprocessor designed by AMD and introduced in early 1997. This chip was based on AMD's new K6 microarchitecture and was marketed as a 166 MHz Pentium II-equivalent processor. The PR2 rating was actually superfluous as the chip operated at 166 MHz anyway and performed just as well or better (AMD got rid of PR2 altogether in later models).

Cache

Main article: K6 § Cache

L2$ can be 256 KiB to 1 MiB, depending on manufacturer and motherboard model. L2$ is off-chip.

Cache Info [Edit Values]
L1I$	32 KiB 32,768 B 0.0313 MiB	1x32 KiB 2-way set associative
L1D$	32 KiB 32,768 B 0.0313 MiB	1x32 KiB 2-way set associative

Graphics

This SoC has no integrated graphics processing unit.

Features

[Edit/Modify Supported Features]

	Supported x86 Extensions & Processor Features
	MMX MMX Extension

• Auto-power down state
• Stop clock state