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   ► KBComputer TechHardwareRAM   Print This     
  From the August 2013 Issue of Prestwood eMag
 
Tech RAM:
DDR SDRAM Memory Module
 
Posted 10 years ago on 11/12/2009
Take Away:

DDR RAM generally comes in one of  four speeds: PC1600, PC2100, PC2700, and PC3200.

KB102078



DDR SDRAM stands for double data rate synchronous dynamic random access memory. DDR SDRAM is faster than SDR RAM (the preceeding type of RAM). DDR provides nearly twice the bandwidth by transferring data on the rising and falling edges of the clock signal without increasing the clock frequency.

Name Data Transfer MHz Module Name
DDR-200 200 PC-1600
DDR-266 266 PC-2000
DDR-333 333 PC-2700
DDR-400 400 PC-3200


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KB Post Contributed By Mike Prestwood:

Mike Prestwood is a drummer, an author, and creator of the PrestwoodBoards online community. He is the President & CEO of Prestwood IT Solutions. Prestwood IT provides Coding, Website, and Computer Tech services. Mike has authored 6 computer books and over 1,200 articles. As a drummer, he maintains play-drums.com and has authored 3 drum books. If you have a project you wish to discuss with Mike, you can send him a private message through his PrestwoodBoards home page or call him 9AM to 4PM PST at 916-726-5675 x205.

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Linked Certification Question(s)

The following are practice certification questions with answers highlighted. These questions were prepared by Mike Prestwood and are intended to stress an important aspect of this KB post. All our practice questions are intended to prepare you generally for passing any certification test as well as prepare you for professional work.

Beginner

1 Beginner Level Question

Question #1: Multiple Choice

What data transfer MHz speed is PC-2700 DDR SDRAM?

Answer:
1. 

400

2. 

2700

3. 

333

4. 

270

5. 

266


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