nforce2 question

[scotoma]

Can an AMD nforce2 board really use the bandwith provided by dual channel ddr400?

 

[Schadenfroh]

yeh, if that is where the bottleneck is.

 

[scotoma]

What I mean is, can an AMD use 800Mhz of memory bandwidth or will it use some figure less than that?

 

[Shack70]

umm DDR400 actually runs@200mhz doubling to 400mhz....

 

[snidy1]

It can, but it's more efficient to run it in-sinc with the CPU.

 

[Shooters]

Well, a 400MHz (200MHz DDR) memory clock certainly won't hurt anything, but you have to remember that most systems perform optimally when the FSB and memory clock are synchronous. If you have an AMD processor and overclock the FSB to 200MHz then running your memory at 200MHz DDR would be great, but if you leave the FSB at its default speed of 133MHz or 166MHz then running your memory at 200MHz DDR won't be much of an improvement than running PC2100 (133MHz DDR) or PC2700 (166MHz DDR) RAM.

 

[scotoma]

Oh. Ok. I was under the impression that the mem had a theoretical bandwidth of 400mhz because it is double data rate (200mhz x 2) and then combining that with dual channel mobo would result in 800mhz. Thanks for clearing that up.