World Library  
Flag as Inappropriate
Email this Article

Clarkdale (microprocessor)

Article Id: WHEBN0024550701
Reproduction Date:

Title: Clarkdale (microprocessor)  
Author: World Heritage Encyclopedia
Language: English
Subject: List of Intel Core i3 microprocessors, List of Intel Core i5 microprocessors, Wolfdale (microprocessor), List of Intel Pentium microprocessors, List of Intel Pentium Pro microprocessors
Publisher: World Heritage Encyclopedia

Clarkdale (microprocessor)

Produced January 7, 2010
Designed by Intel
Max. CPU clock rate 2.8 GHz to 3.6 GHz
Min. feature size 32 nm
Instruction set x86, x86-64, MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, AES-NI
Microarchitecture Westmere
CPUID code 02065x
Product code 80616
Cores 2
L2 cache 2x256kb
L3 cache 4 MB
Application Desktop
Brand name(s)

Clarkdale is the code name for an Intel processor, initially sold as desktop Intel Core i5 and Core i3 and Pentium.[1] It is closely related to the mobile Arrandale processor; both use dual-core dies based on the Westmere 32 nm die shrink of the Nehalem microarchitecture, and have integrated Graphics as well as PCI Express and DMI links.

Clarkdale is the successor of the 45 nm Core microarchitecture-based Wolfdale processor that is used in the many desktop Intel Core 2, Celeron and Pentium Dual-Core processors. While Wolfdale typically used both a north bridge and a south bridge, Clarkdale already contains the major north bridge components, which are the memory controller, PCI Express for external graphics, integrated graphics and the DMI connector, making it possible to build more compact systems without a separate northbridge or discrete graphics as Lynnfield.

The Clarkdale processor package contains two dies:[2]

  1. the actual 32 nm processor with the I/O connections, and
  2. the 45 nm graphics controller with the memory interface (GMCH).

Physical separation of the processor and GMCH meant increased memory latency.

The CPUID for Clarkdale is family 6, model 37 (2065x). The mobile equivalent of Clarkdale is Arrandale.

Brand names

Clarkdale processors are sold under the Intel Core, Pentium and Celeron brand names, with varying feature sets. The Core i5 versions generally have all features enabled, with only the Core i5-661 model lacking Intel VT-d and TXT like the Core i3, which also does not support Turbo Boost and the AES new instructions. In addition, the Pentium and Celeron versions do not have SMT, and they can only use a reduced amount of third-level cache.

The Xeon L340x line has a lower clock frequency and thermal design power, and supports unbuffered ECC memory in addition to the features of the Core i5-6xx, but has support for the integrated graphics disabled.

Importantly, although the memory controller in Clarkdale processors is on-package, it's on a separate die from the CPU cores, and thus has increased latency compared to processor architectures which integrate it on-die with the main CPU cores.[3]

Brand Name Model (list) Logo L3 Cache size Thermal Design Power
Celeron G1xxx 2 MB 73 W
Pentium G6xxx 3 MB
Core i3 i3-5xx 4 MB
Core i5 i5-6xx 73–87 W
Xeon L340x 4 MB 30 W

See also

External links

  • IDF: Intel Clarkdale Up Close and Personal


  1. ^ "Intel May Unveil Microprocessors with Integrated Graphics Cores at Consumer Electronics Show". X-bit labs. 2009-08-13. Retrieved 2014-01-15. 
  2. ^ "The Delayed Mobile Nehalems: Clarksfield, Arrandale, and the Calpella Platform". 2009-02-22. Retrieved 2014-01-15. 
  3. ^ Shimpi, Anand. "The Clarkdale Review: Intel's Core i5 661, i3 540 & i3 530". Retrieved 16 June 2014. 
This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.

Copyright © World Library Foundation. All rights reserved. eBooks from Project Gutenberg are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.