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Core µarch
General Info
Arch Type	CPU
Designer	Intel
Manufacturer	Intel
Introduction	April, 2006
Phase-out	May, 2009
Process	65 nm
Instructions
ISA	x86-16, x86-32, x86-64
Succession
Modified Pentium M Penryn

Core was the microarchitecture for Intel's 65 nm process for desktops and servers as a successor to NetBurst. Core was replaced by the Penryn microarchitecture in late 2008.

Architecture

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Key changes from NetBurst

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Overview

When Core was introduced in 2006, Intel described it as a merger of both P6 and NetBurst. When scrutinizing the details, it's fairly clear that little was actually borrowed from NetBurst. In fact, it wasn't until Intel's entirely new microarchitecture Sandy Bridge that a true merger presented itself.

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Die Shot

Dual-core Core

• Woodcrest
• 143 mm²
• 291,000,000 transistors
• 65 nm process
• 2 cores

Documents

• Intel® Processor Micro-architecture – Core®; Intel® Software College, 2006
• White Paper: Inside Intel® Core TM Microarchitecture, 2006
• Intel Multi-core Architecture and Implementations, March 7, 2006
• Intel® Core Microarchitecture, March 8, 2006
• Intel® Core Microarchitecture, IDF
• Core, Justin Rattner Senior Fellow, Chief Technology Officer, IDF

• Product Brief: Intel® Core 2 Duo Desktop Processor
• Product Brief: Intel® Core 2 Extreme Processor