533Mhz FSB = 133Mhz*4 multiplier. So where does 333MHz DDR fit in?

[foggy]

Newbie question of course... as the title says, I basically have a P4 with 533 FSB.

But where does the DDR 333 which is running at 166Mhz fit in? Isn't the bus only running at 133Mhz?

 

[Kowan]

For overclocking the FSB or forward thinking, (carry the memory over with a new board).
Intel's road map showed the first Springdale chipset supporting DDR333/400. Been seeing posts of possible DDR400 only?

 

[Wingznut]

On those boards that support DDR333, they run the memory asyncronously.

 

[foggy]

Are you saying that DDR 333 is for overclocking only? Meaning, if I leave it as default specs at a 133Mhz bus, I only need DDR 266?

 

[ChampionAtTufshop]

Originally posted by: foggy
Are you saying that DDR 333 is for overclocking only? Meaning, if I leave it as default specs at a 133Mhz bus, I only need DDR 266?

somewhat
some chipsets support running ram asynchronously from the cpu, so cpu could be running at 133fsb and ram at 166fsb and so on

 

[oldfart]

Originally posted by: foggy
Are you saying that DDR 333 is for overclocking only? Meaning, if I leave it as default specs at a 133Mhz bus, I only need DDR 266?

Not really. @133 FSB, DDR333 will outperform DDR266 with the extra memory bandwidth.