Intel® Pentium® 4 Processor

Get advanced performance for today's productivity, digital imaging, music and entertainment applications. The Intel® Pentium® 4 Processor provides the performance, quality, and reliability demanded by consumer and business customers.

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Intel® Pentium® 4 Processor Features

Processor The Intel® Pentium® 4 processor 600 sequence The Intel® Pentium® 4 processor 500 sequence The Intel® Pentium® 4 processor 478-pin Package Processor Number Δ 661, 651, 641, 631 630, 640, 650, 660, 670 571, 561, 551, 541, 531, 521 NA NA Package     LGA 775     Technology 65nm process technology 90nm process technology 90 nm process technology     L2 Cache 2 MB 2 MB 1MB 512KB, 1MB 256KB, 512KB, 1MB Clock Speed 3.60, 3.40, 3.20, 3.GHz 3.80, 3.60, 3.40, 3.20, 3 GHz 2.80 to 3.80 GHz 2.40 to 3.40 GHz 1.30 to 2.80 GHz Front Side Bus 800 MHz 800 MHz 800 MHz 800 MHz 400, 533 MHz Architecture         Intel NetBurst® microarchitecture 90 nm, 130 nm process technology   90 nm, 130 nm, 180 nm process technology   Intel® Extended Memory 64 Technology (Intel® EM64T)f Yes Yes       Execute Disable Bit° Yes Yes       Enhanced Intel SpeedStep® Technology Yes Yes       Socket LGA775 LGA775       Chipset         Intel® 945P Express chipset Intel® 945G Express chipset Intel® 915P Express chipset Intel® 915G Express chipset or equivalent 3rd party chipset       Chipset – 800 MHz system bus   Intel® 925X Express and 915 Express Chipsets Intel® 875P, 865PE, 865G, 865GV, and 848P chipsets NA Chipset – 533 MHz system bus       Intel® 865P, 850 chipset family, 850E, 845PE, 845GE, 845GV, 845E and 845G chipsets Intel® 865P, 850 chipset family, 850E, 845PE, 845GE, 845GV, 845E and 845G chipsets Chipset – 400 MHz system bus     NA Intel® 845GL and 845 chipsets Motherboard     Intel® Desktop Boards Media Series Intel® Desktop Boards Executive Series Intel® Desktop Boards Classic Series       Intel® Desktop Boards     Compatible with Intel® Pentium® 4 processor Compatible with Intel Pentium 4 processor Features Benefits Features Features   Hyper-Threading Technology (HT Technology) HT Technology enables one physical processor to appear and behave as two logical processors to the operating system. HT Technology gives you multitasking capabilities by enabling two applications to run simultaneously without slowing down the system. Execute Disable Bit Intel® Extended Memory 64 Technology -supporting 64-bit computing f Hyper-Threading Technology   Execute Disable Bit Can help to prevent some classes of viruses and worms that exploit buffer overrun vulnerabilities thus helping to improve the overall security of the system.       Intel® Extended Memory 64 Technology Processors with Intel EM64T allow platforms to access larger amounts of memory and will support 64-bit extended operating systems.       Enhanced Intel SpeedStep® Technology Enables cooler and quieter PC designs—depending on system implementation and usage.       Intel Designed Thermal Solution Includes a 4-pin connector for fan speed control to help minimize the acoustic noise levels generated from running the fan at higher speeds for thermal performance.† The fan speed control technology is based on actual CPU temperature and power usage.       Recommended Applications         Digital Music Digital Video Gaming Digital Home apps Business Productivity and Solutions Digital Photography Digital Music Digital Video Gaming Digital Home apps Business Productivity and Solutions Multimedia applications

^Δ Intel processor numbers are not a measure of performance. Processor numbers differentiate features within each processor family, not across different processor families. See www.intel.com/products/processor_number/ for details.

^φ64-bit computing on Intel architecture requires a computer system with a processor, chipset, BIOS, operating system, device drivers and applications enabled for Intel® 64 architecture (formerly known as Intel® Extended Memory 64 Technology, or Intel® EM64T). Processors will not operate (including 32-bit operation) without an Intel 64 architecture-enabled BIOS. Performance will vary depending on your hardware and software configurations. Consult with your system vendor for more information. See www.intel.com/technology/architecture-silicon/intel64/index.htm for more information or consult with your system vendor.

° Enabling Execute Disable Bit functionality requires a PC with a processor with Execute Disable Bit capability and a supporting operating system. Check with your PC manufacturer on whether your system delivers Execute Disable Bit functionality.

^† The acoustic benefits of the 4-pin header are reliant on a properly designed motherboard. Boxed Intel® desktop boards that support these processors were designed with support for acoustic benefits of the 4-pin header.