Intel's DDR chip set debuts

Opening the doors to cheaper and faster PCs based on Intel Corp.'s Pentium 4 processor, the long-awaited version of Intel's 845 chip set that supports DDR SDRAM (Double Data Rate Synchronous Dynamic RAM), the 845-D, debuted at Comdex.

Legend QDI, which is a subsidiary of Legend Holdings Ltd., China's largest PC manufacturer, demonstrated its QDI P2D-A motherboard, which is based on the 845-D, at its booth here. The standard ATX motherboard, which can support Pentium 4 chips running at speeds up to 2GHz and above, was shown in a demonstration running a 1.6GHz Pentium 4 processor with 128M bytes of DDR SDRAM.

The QDI P2D-A will begin shipping worldwide in December -- one month earlier than Intel's previously announced plans to release the chip during the first quarter -- and is expected to cost around US$140, said Wang Huabing, senior manager for system research and development at Legend's commercial desktop PC business division.

Chip sets provide the interface that connects a PC's processor with its main memory. Intel currently offers two chip sets for the Pentium 4, the 850 and the 845. The 850 supports RDRAM (Rambus DRAM) and the existing version of the 845 supports SDRAM, which is cheaper than RDRAM but is also considered slower.

The release of the 845-D will allow PC manufacturers to sell Pentium 4-based computers that use DDR SDRAM, which is faster than SDRAM. DDR SDRAM is comparable in performance to RDRAM but costs less.

The 845-D is the fourth DDR SDRAM chip set for the Pentium 4 to be made available. Taiwan-based chip set makers Via Technologies Inc., Silicon Integrated Systems Inc. and Acer Laboratories Inc. have also announced products -- the P4X266, SiS645 and Aladdin P4, respectively -- that provide DDR support for the Pentium 4.

DDR SDRAM support for the Pentium 4 has been the source of friction between Via and Intel. In September, Intel filed lawsuits in the U.S. and elsewhere alleging that Via's P4X266 chip set violates several of Intel's microprocessor-related patents. Via has repeatedly denied those allegations.

Legend Holdings Ltd., in Hong Kong, can be reached at +852-2516-4843 or Intel, in Santa Clara, California, can be reached at +1-408-987-8080, or via the Web at

Join the newsletter!

Error: Please check your email address.
Rocket to Success - Your 10 Tips for Smarter ERP System Selection
Keep up with the latest tech news, reviews and previews by subscribing to the Good Gear Guide newsletter.

Sumner Lemon

PC World
Show Comments



Victorinox Werks Professional Executive 17 Laptop Case

Learn more >



Back To Business Guide

Click for more ›

Brand Post

Most Popular Reviews

Latest Articles


PCW Evaluation Team

Louise Coady

Brother MFC-L9570CDW Multifunction Printer

The printer was convenient, produced clear and vibrant images and was very easy to use

Edwina Hargreaves

WD My Cloud Home

I would recommend this device for families and small businesses who want one safe place to store all their important digital content and a way to easily share it with friends, family, business partners, or customers.

Walid Mikhael

Brother QL-820NWB Professional Label Printer

It’s easy to set up, it’s compact and quiet when printing and to top if off, the print quality is excellent. This is hands down the best printer I’ve used for printing labels.

Ben Ramsden

Sharp PN-40TC1 Huddle Board

Brainstorming, innovation, problem solving, and negotiation have all become much more productive and valuable if people can easily collaborate in real time with minimal friction.

Sarah Ieroianni

Brother QL-820NWB Professional Label Printer

The print quality also does not disappoint, it’s clear, bold, doesn’t smudge and the text is perfectly sized.

Ratchada Dunn

Sharp PN-40TC1 Huddle Board

The Huddle Board’s built in program; Sharp Touch Viewing software allows us to easily manipulate and edit our documents (jpegs and PDFs) all at the same time on the dashboard.

Featured Content

Product Launch Showcase

Latest Jobs

Don’t have an account? Sign up here

Don't have an account? Sign up now

Forgot password?