On Sat, 2007-04-14 at 07:46 +0800, John Summerfield wrote:
> Peter Arremann wrote:
<SNIP>
> >> Thanks.
> > 4200 is a performance rating... Originally they modeled after a Pentium III,
> > later switched to comparing to Duron performance. With dual core everything
> > got even harder to determine - but important thing is that 4200 is just a
> > relative rating and doesn't mean 4.2Ghz.
>
> Pentium IV, not III I thought. No point comparing with Duron, it's one
> of AMD's own processors. When Intel redid its implementation, AMD kept
> on extrapolating from the older Pentium IVs so as to continue using the
> same measuring stick (and getting bigger numbers might be nice too).
For the X2 series the number is much simpler. it's just the CPU clock
rate times two, subtracting 200 if the CPU has 512K cache per core.
Paul
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