Which Speed DDR2 For Celeron 430 - 800 MHz FSB

[BoyChair]

Which speed DDR2 RAM is best for a Celeron 430 CPU with 800MHZ FSB -- http://www.intel.com/products/processor/celeron/specs.htm

Most of the low end motherboards I'm looking at support DDR2 533 & DDR2 667. Is it better to find something that supports DDR2 400 or DDR2 800?

Cheers

 

[BoyChair]

Thanks for all the help!!!

I'm getting a DDRII 800 MHz (PC2-6400) capable mainboard now so I can run a 1:1 ratio.