[Beowulf] amd 3 and 6 core processors

Jonathan Aquilina eagles051387 at gmail.com
Thu Aug 20 11:45:07 PDT 2009


a friend of mine told me that the amd tri cores were quads with one core
disbaled?

On Thu, Aug 20, 2009 at 8:26 PM, Greg Lindahl <lindahl at pbm.com> wrote:

> On Thu, Aug 20, 2009 at 06:10:43PM +0200, Jonathan Aquilina wrote:
>
> > someone brought this up in another post and instead of hyjacking that
> post i
> > started a new one. what are the advantages of having processors that defy
> > the normal development and progressions of cores.
> >
> > 2 4 8 etc like intel follows but amd seems to have done 2 3 4 6 ?
>
> Intel has done 6 core processors in the recent past, and there are
> currently 3 memory controllers on Nehalem cpus.
>
> The point of a 6 core processor is that's all that fits, plus there isn't
> enough memory bandwidth to support 8 cores with many workloads.
>
> The point of 3 core processors was selling at a lower price point, and
> being able to sell defective chips as good.
>
> -- greg
>
>
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-- 
Jonathan Aquilina
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