What's better: dual-channel memory mode or a bit more RAM?

[Lucio M Nicolosi]

On Wed, Apr 27, 2011 at 2:37 PM, NoOp <glgxg at sbcglobal.net> wrote:
>
> Worth a read.
>
> <http://www.kingston.com/newtech/mkf_520ddrwhitepaper.pdf>
>

Also this, for a compreensive view:

http://www.ilsistemista.net/index.php/hardware-analysis/3-the-phenom-phenomii-memory-controller-and-the-ganged-vs-unganged-question.html

>From Wiki:

http://en.wikipedia.org/wiki/Dual-channel_architecture

"Ganged vs Unganged

Dual-channel was originally conceived as a way to maximize memory
throughput by combining two 64-bit buses into a single 128-bit bus.
This is retrospectively called the "ganged" mode. However, due to
lackluster performance gains in consumer applications as discussed
above, more modern implementations of dual-channel use the "unganged"
mode by default, which maintains two 64-bit memory buses but allows
independent access to each channel, in support of multithreading with
multi-core processors."


-- 
Lucio M. Nicolosi, Eng.
Open Source Implementation
System and Applications
GNU/Linux - Ubuntu