FSB and memory multiplier

[R4z0r]

Hi All,

I was reading the DS3/4 guide over in the motherboards section

http://forums.overclockers.co.uk/showthread.php?t=17636047

And I came accross a bit that says set the memory multiplier to 2. I understand this lets you achieve a higher system FSB so you can clock your CPU more but surely this halves your memory bandwidth? Am I right in thinking you'd need an FSB of 400Mhz just to get back to the standard memory speed of 800Mhz for a C2D/DDR2?

Have I got this completely wrong or do the benefits of higher CPU clock speeds outweigh what you'll lose in memory bandwidth?

Thanks!

 

[R4z0r]

Anybody?

 

[R4z0r]

Surely changing the RAM divider will make the RAM run slower? For example, set RAM divider to 2 and FSB to 250Mhz, your memory would be running at 500Mhz rather than the stock 800Mhz?