Copyright © 2006, Intel Corporation. All rights reserved. *Other brands and names are the property of their respective owners Intel® Core™ Duo Processor

Copyright © 2006, Intel Corporation. All rights reserved. *Other brands and names are the property of their respective owners

Intel® Core™ Duo Processor Architecture

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Copyright © 2006, Intel Corporation. All rights reserved.

Intel and the Intel logo are trademarks or registered trademarks of Intel Corporation or its subsidiaries in the United States or other countries. *Other brands and names are the property of their respective owners.

Objective•Learn about capabilities of Intel® Core™ Duo Processor for

• Multi-threading • Vector/SIMD floating point execution• Cache architecture• Power management

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Motivations for New Architecture•Intel’s first low power dual core CPU

•New design philosophy of performance per watt

•Enabling new usage models for mobile and desktop platforms

•65nm manufacturing technology

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Key Features

• Intel® Core™ Duo Processor• Dual execution cores• Out-of-Order Execution Engine• 32KB L1 instruction and 32KB L1 data caches,

2MB L2 cache • 667 MHz system bus with 5333MB/S bandwidth• Intel® Smart Cache• Intel® Enhanced SpeedStep® Technology• Intel® Dynamic Power Coordination• Intel® Digital Media Boost

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Resource Utilization

Note: Each box represents a processor execution unit

Tim

e (p

roc.

cyc

les)

Superscalar Dual CoreHyper-

Threading

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Key FeaturesDual Core

Two Actual Processor CoresTwo Actual Processor Cores

Truly Parallel Multitasking & Multi-threaded Truly Parallel Multitasking & Multi-threaded ExecutionExecution

Truly Parallel Multitasking & Multi-threaded Truly Parallel Multitasking & Multi-threaded ExecutionExecution

• Two physical cores in a package

• Each with its own execution resources

• Each with its own L1 cache• 32K instruction and 32K data• 8-way set associative; 64-byte line

• Both cores share the L2 cache• 2MB 8-way set associative; 64-byte line size • 10 clock cycles latency; Write Back update policy

EXE CoreEXE Core

FP UnitFP Unit

EXE CoreEXE Core

FP UnitFP Unit

L2 CacheL2 Cache

L1 CacheL1 Cache L1 CacheL1 Cache

System Bus (667MHz, 5333MB/s)

System Bus (667MHz, 5333MB/s)

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Key Features Intel® Smart Cache

Enables Greater System Responsiveness Enables Greater System Responsiveness

BusBus

2 MB L2 Cache2 MB L2 Cache

CoreCore11

CoreCore22

• Shared between the two cores

• Advanced Transfer Cache architecture

• Reduced bus traffic

• Both cores have full access to the entire cache

• Dynamic Cache sizing

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Key FeaturesEnhanced Intel SpeedStep® Technology

•Multi-point demand-based switching

•Supports transitions to deeper sleep modes

•Clock partitioning and recovery

•Dynamic Bus Parking

Breakthrough Performance and Improved Battery LifeBreakthrough Performance and Improved Battery Life

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Key FeaturesIntel® Digital Media Boost

Streaming SIMD Extensions (SSE)

Decoder Throughput Improvement

High Performance High Performance ComputingComputing Digital PhotographyDigital Photography Digital MusicDigital Music Video EditingVideo Editing Internet Content CreationInternet Content Creation 3D & 2D Modeling3D & 2D Modeling CAD ToolsCAD Tools

SSE/SSE2 Instruction

Optimization

Floating Point Performance Enhancement

New Enhanced Streaming SIMD

Extensions 3 (SSE3)

Providing True SIMD Integer & Floating Point Performance!Providing True SIMD Integer & Floating Point Performance!

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SIMD FP using AOS format*

Thread Synchronization

Video encoding

Complex arithmetic

FP to integer conversions

HADDPD, HSUBPD

HADDPS, HSUBPS

MONITOR, MWAIT

LDDQU

ADDSUBPD, ADDSUBPS,

MOVDDUP, MOVSHDUP,

MOVSLDUP

FISTTP

* Also benefits Complex Arithmetic and Vectorization

Key FeaturesIntel® Digital Media Boost – SSE3 Instructions

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Summary• Intel® Core™ Duo processor is at the core of Intel desktop and

Mobile Platforms (2GHz, 5333MB/s bandwidth, 31W)

• Dual core enables true Multi-threaded execution

• Intel® Smart Cache enables greater system responsiveness

• Intel® SpeedStep® technology provides very low system down times

• Intel® Dynamic Power Management improves performance and battery life

• Intel® Digital Media Boost delivers a rich multimedia experience

Intel® Core™ Duo: More Performance for Less PowerIntel® Core™ Duo: More Performance for Less Power

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Documents

Copyright © 2006, Intel Corporation. All rights reserved. *Other brands and names are the property of their respective owners Intel® Core™ Duo Processor