I'm jumping in a little late, but I
wanted to clarify just in case others
read this the same. The Pentium 4 has
a 400Mhz front side bus, but not a
cpu core speed of 400Mhz.
I had just lectured on this topic, but
the 400Mhz is actually only 100Mhz
using 4 command processes per clock cycle.
Which by the way is why rambus is ideal
over SDRAM.
Similar to the AMD 200 & 266Mhz FSB gain
using 2 data transfers per clock cycle.
Which is why it is ideal to use DDR-SDRAM.

Otherwise, P4's are only available above
1.3Ghz .

-yui



--- Diana Benoit <[log in to unmask]> wrote:
> Yes, I just built one for my son and daughter-in-law!
>
> Diana
>
> Roberto Safora wrote:
>
> > Reading a quotation I found " 423-pin PGA Socket, Intel Pentium 4
> Processor
> > 400 MHz."
> > Is there a P 4 running at such a frequency?
> > TIA
> > Roberto


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