World Library  
Flag as Inappropriate
Email this Article

Yorkfield (microprocessor)

Article Id: WHEBN0029047914
Reproduction Date:

Title: Yorkfield (microprocessor)  
Author: World Heritage Encyclopedia
Language: English
Subject: List of Intel microprocessors, Xeon, Intel Core (microarchitecture), Comparison of Intel processors, List of Intel Xeon microprocessors, Intel Core 2, List of Intel codenames
Publisher: World Heritage Encyclopedia

Yorkfield (microprocessor)

Produced From 2007 to present
Max. CPU clock rate 2333 Mhz to 3200 Mhz
FSB speeds 1066 MT/s to 1600 MT/s
Instruction set x86
Microarchitecture Penryn
CPUID code 1067x
Product code Yorkfield: 80580 Yorkfield-6M: 80581 Yorkfield CL: 80584
Cores 4
L2 cache Yorkfield: 12 MB
Yorkfield-6M: 6 MB
Application Desktop
Brand name(s)
  • Core 2 Quad Q8xxx
  • Core 2 Quad Q9xxx
  • Xeon 33xx

Yorkfield is the code name for some Intel processors sold as Core 2 Quad and Xeon. In Intel's Tick-Tock cycle, the 2007/2008 "Tick" was Penryn microarchitecture, the shrink of the Core microarchitecture to 45 nanometers as CPUID model 23, replacing Kentsfield, the previous model.

Like its predecessor, Yorkfield Multi-chip modules come in two sizes. The smaller version is equipped with 6MB L2 cache, and is commonly called Yorkfield-6M. The larger version is equipped with 12 MB L2 cache.

The mobile version of Yorkfield is Penryn-QC and the dual-socket server version is Harpertown. The MP server Dunnington chip is a more distant relative based on a different chip but using the same 45 nm Core microarchitecture. The Wolfdale desktop processor is a dual-core version of Yorkfield.

The successor to Yorkfield is Nehalem based Lynnfield.


Processor Brand Name Model (list) Cores L2 Cache Socket TDP
Yorkfield Xeon X33x0 4 2×3–2×6 MB LGA 775 65–95 W
Yorkfield-CL X33x3 LGA 771 80 W
Yorkfield-6M Core 2 Quad Q8xxx 2×2 MB LGA 775 65–95 W
Q9x0x 2×3 MB
Yorkfield Q9x5x 2×6 MB
Yorkfield XE Core 2 Extreme QX9xxx 2×6 MB 130–136 W
QX9xx5 LGA 771 150 W


Yorkfield (codename for the Core 2 Quad Q9x5x series and Xeon X33x0 series) features a dual-die quad core design with two unified 6 MB L2 caches; their product code is 80569. They also feature 1333 MT/s FSB and are compatible with the Bearlake chipset.[1] These processors were released in late March 2008 beginning with the Q9300 and Q9450. Yorkfield CPUs were expected to be released in January 2008. The release of Yorkfield, however, was delayed to March 15, 2008. Initially this delay was attributed to an error found in the Yorkfield chip,[2] but later reports claimed that the delay was necessary in order to ensure compatibility with the 4-layer printed circuit boards utilized by many mainstream motherboards.[3] At the Intel Developer Forum 2007, a Yorkfield processor was compared with a Kentsfield processor.[4][5]


Yorkfield-6M (product code 80580) are similar to Yorkfield but are made from two Wolfdale-3M like cores, so they have a total of 6 MB of L2 cache, with 3 MB shared by two cores. They are used in Core 2 Quad Q8xxx with 4 MB cache enabled and Core 2 Quad Q9xxx and Xeon X3320/X3330 processors with all of the 6 MB enabled. Q8xxx processors initially had no support for Intel VT unlike Q9xxx, but later versions all have VT enabled.

Yorkfield XE

On November 11, 2007, Intel released the first Yorkfield XE processor, Core 2 Extreme QX9650. It is the first Intel desktop processor to use 45 nm technology and high-k metal gates. Yorkfield features a dual-die quad core design with two unified level-two (L2) caches of 6 MB each. It also features a 1333 MT/s FSB and clock rate of 3 GHz. The processor incorporates SSE4.1 instructions and has total of 820 million transistors on 2x107 mm² dies. QX9650 and QX9770 both are labeled as product code 80569 like Yorkfield, while QX9775, being made for Dual Socket 771 mainboards, uses product code 80574 like the Xeon X5482 "Harpertown" that it is closely related to.

Yorkfield CL

The OEM-only Xeon X33x3 processors with 80 W TDP and product code 80584 are made for Socket 771 like Harpertown but are only supported in single-socket configurations. Like the dual-core Wolfdale-CL processor, these will not work in regular Socket 775 mainboards but are typically used in blade servers that otherwise require DP server processors like Wolfdale-DP or Harpertown.


Yorkfield was replaced by the 45 nm Nehalem processor.

See also


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.