521 datasheet(9/96 Pages) INTEL

9 / 96 page

Datasheet

Contents

Intel® Pentium® 4 Processors 570/571,

560/561, 550/551, 540/541, 530/531, and

520/521

The Intel® Pentium® 4 processor family supporting Hyper-Threading Technology1 (HT Technology) delivers

Intel's advanced, powerful processors for desktop PCs and entry-level workstations that are based on the Intel

NetBurst® microarchitecture. The Pentium 4 processor is designed to deliver performance across applications and

usages where end-users can truly appreciate and experience the performance. These applications include Internet

audio and streaming video, image processing, video content creation, speech, 3D, CAD, games, multimedia, and

multitasking user environments. Intel® Extended Memory 64 Technology enables the Intel® Pentium® processor to

execute operating systems and applications written to take advange of the Intel EM64TΦ.

• Available at 3.80 GHz, 3.60 GHz, 3.40 GHz,

3.20 GHz, 3 GHz, and 2.80 GHz

• Supports Hyper-Threading Technology1

(HT Technology) for all frequencies with

800 MHz front side bus (FSB)

• Intel® Pentium® 4 processors 571, 561, 551, 541,

531, and 521 support Intel® Extended Memory 64

Technology (EM64T)Φ

• Supports Execute Disable Bit capability

• Binary compatible with applications running on

previous members of the Intel microprocessor line

• Intel NetBurst® microarchitecture

• FSB frequency at 800 MHz

• Hyper-Pipelined Technology

• Advance Dynamic Execution

• Very deep out-of-order execution

• Enhanced branch prediction

• Optimized for 32-bit applications running on

advanced 32-bit operating systems

• 16-KB Level 1 data cache

• 1-MB Advanced Transfer Cache (on-die, full-

speed Level 2 (L2) cache) with 8-way associativity

and Error Correcting Code (ECC)

• 144 Streaming SIMD Extensions 2 (SSE2)

instructions

• 13 Streaming SIMD Extensions 3 (SSE3)

instructions

• Enhanced floating point and multimedia unit for

enhanced video, audio, encryption, and 3D

performance

• Power Management capabilities

• System Management mode

• Multiple low-power states

• 8-way cache associativity provides improved

cache hit rate on load/store operations

• 775-land Package

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