Intel Pentium II 266 - 80522PX266256

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Intel Pentium II 266 MHz specifications

General information
Type	CPU / Microprocessor
Market segment	Desktop
Family	Intel Pentium II
CPU part number	80522PX266256 is an OEM/tray microprocessor
Frequency ?	266 MHz
Bus speed ?	66 MHz
Clock multiplier ?	4
Package	Single Edge Contact Cartridge 5.505" x 2.473" x 0.647" (13.98 cm x 6.28 cm x 1.64 cm)
Socket	Slot 1 / SC242
Introduction date	7-May-97
Price at introduction	$775

Architecture / Microarchitecture
Microarchitecture	P6
Processor core ?	Klamath
Manufacturing process	0.35 micron, 7.5 million transistors
Data width	32 bit
Data bus width	64 bit
Floating Point Unit	Integrated
Level 1 cache size ?	16 KB code 16 KB data
Level 2 cache size ?	256 KB
Physical memory	64 GB
Multiprocessing	Up to 2 processors
Features	MMX instructions
Low power features	AutoHALT state ? Stop Grant state ? Sleep state ? Deep Sleep state ?

Electrical / Thermal parameters
V core ?	2.8V
V L2 cache	3.3V ± 5%

CPUs, related to Intel Pentium II 266 MHz (80522PX266256)

Model Freq. L2
cache Multi-
processing TDP Features

Intel Desktop Pentium II family, Slot 1

   Pentium II 266 MHz (80522PX266256) 266 MHz 256 KB 2

   Pentium II 300 MHz (80522PX300512) 300 MHz 512 KB 2 43 Watt

   Pentium II 300 MHz (80522PX300512EC) 300 MHz 512 KB 2 43 Watt

   Pentium II 300 MHz (80523PX300512PE) 300 MHz 512 KB 2 18.6 Watt

   Pentium II 333 MHz (80523PX333512) 333 MHz 512 KB 2 23.7 Watt

   Pentium II 333 MHz (80523PX333512PE) 333 MHz 512 KB 2 23.7 Watt

   Pentium II 350 MHz (80523PY350512) 350 MHz 512 KB 2 21.5 Watt

   Pentium II 350 MHz (80523PY350512PE SECC2) 350 MHz 512 KB 2 21.5 Watt

   Pentium II 350 MHz (80523PY350512PE) 350 MHz 512 KB 2 21.5 Watt

   Pentium II 400 MHz (80523PY400512) 400 MHz 512 KB 2 24.3 Watt

   Pentium II 400 MHz (80523PY400512PE SECC2) 400 MHz 512 KB 2 24.3 Watt

   Pentium II 400 MHz (80523PY400512PE) 400 MHz 512 KB 2 24.3 Watt

   Pentium II 450 MHz (80523PY450512) 450 MHz 512 KB 2 27.1 Watt

   Pentium II 450 MHz (80523PY450512PE SECC2) 450 MHz 512 KB 2 27.1 Watt

   Pentium II 450 MHz (80523PY450512PE) 450 MHz 512 KB 2 27.1 Watt

Other families, P6 micro-architecture, Slot 1

   Celeron 333 MHz (80524RX333128) 333 MHz 128 KB

   Celeron 366 MHz (80524RX366128) 366 MHz 128 KB

   Celeron 400 MHz (80524RX400128) 400 MHz 128 KB

   Celeron 433 MHz (80524RX433128) 433 MHz 128 KB

   Pentium III 850 MHz (80526PY850256) 850 MHz 256 KB 2 SSE

   Pentium III 866 MHz (80526PZ866256) 866 MHz 256 KB 2 SSE

   Pentium III 933 MHz (80526PZ933256) 933 MHz 256 KB 2 SSE

   Pentium III 1 GHz (80526PY1000256) 1 GHz 256 KB 2 SSE

   Pentium III 1BGHz (Slot 1) 1 GHz 256 KB 2 SSE

• Highlighted numbers and features indicate whether specific processor performs better or worse than Pentium II 266 MHz (80522PX266256)

• 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:

SSE - SSE instructions

Intel Pentium II 266 MHz Overclocking

Sorry, overclocking information for the microprocessor is not available at this time.

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Last modified: 8 May 2013