Feeds

DDR – BX Boards spells it out

The devil is in the details

  • alert
  • submit to reddit

Anyone trying to get their heads round DDR (Double Data Rate) would do well to have a look at this piece by Andy Drake at BXBoards, the estimable (and British) hardware review site.

As yet BX Boards has not produced any benchmarks, as it's a little short of test-kit, but it has assembled a wad of helpful information about the new memory technology.

We've all heard the shorthand explanation of what DDR does - that is, it checks data twice per clock cycle - but this article tries to put the technology in some kind of evolutionary context.

The article also highlights a potential stumbling block for the technology. DDR won't fit in a standard motherboard because it has 184 pins compared to a standard DIMM's 168. With new motherboards come new chipsets...and new problems(at the moment there are three major players: AMD, VIA and ALi)?.

Then to the real heart of the matter: how much better is performance - once DDR is installed?

So far most of the benchmarks we've seen on hardware sites would suggest performance improvements of around 15-20 per cent - certainly nothing close to the doubling it might seem reasonable to expect at first glance.

This is because there are many bottlenecks within a system: "Bus speed, hard drive speed, PCI speed et al all play a part in performance," Drake notes.

However, he points out that some people are "touting DDR as a solution that will magically increase the performance of our processors by 30 or 50 per cent," a suggestion that provokes a sceptical reaction. ®

Whitepapers

Top three mobile application threats
Learn about three of the top mobile application security threats facing businesses today and recommendations on how to mitigate the risk.
Combat fraud and increase customer satisfaction
Based on their experience using HP ArcSight Enterprise Security Manager for IT security operations, Finansbank moved to HP ArcSight ESM for fraud management.
The benefits of software based PBX
Why you should break free from your proprietary PBX and how to leverage your existing server hardware.
Five 3D headsets to be won!
We were so impressed by the Durovis Dive headset we’ve asked the company to give some away to Reg readers.
SANS - Survey on application security programs
In this whitepaper learn about the state of application security programs and practices of 488 surveyed respondents, and discover how mature and effective these programs are.