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Report: Sun leaks info on Intel's Nehalem, Dunnington

Posted: 03 Mar 2008 ?? ?Print Version ?Bookmark and Share

Keywords:Intel Nehalem? Dunnington chips? info leaks? 45nm?

Sun Microsystems last week reportedly leaked on its public Web server slides that provided some details of an upcoming six-core processor from Intel code-named Dunnington.

The Xeon server processor was described as a 45nm chip from the Penryn line, according to the tech site DailyTech. Dunnington, based on the Core 2 architecture, replaces Tigerton, a 65nm, four-core Xeon processor.

Intel was not immediately available for comment on the report.

While Tigerton comprises two Core 2 Duo chips in one package, Dunnington, set to ship in 2H, would have three integrated dual-core chips, said the site, which also posted the slides that were on Sun's public Web server. Intel reportedly presented the information to Sun last month during a meeting in Austria.

Dunnington has a 16Mbyte L3 cache, and each pair of cores has access to 3Mbyte of local L2 cache, according to the slides. The processor is pin-compatible with Tigerton and works with the existing Intel 7300 chipset, formerly Clarksboro.

In addition to Dunnington, the leaked slide deck also included additional information on Nehalem, code name for the successor of Penryn, according to DailyTech. Scheduled for release this quarter, Nehalem is a redesign of Intel's existing Core architecture.

Nehalem-based processors will use Intel's improved high-k metal gate and hold 731 million transistors in each die. Parts of the transistors are built with the element hafnium instead of silicon and have significantly less memory leakage than previous generations, according to Intel.

- Antone Gonsalves
InformationWeek




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