[Beowulf] amd 3 and 6 core processors

Bruno Coutinho coutinho at dcc.ufmg.br
Thu Aug 20 12:34:41 PDT 2009


Yes. Amd tri-cores were quad cores with a defective core, so they disable
the defective core
And amd isn't alone. Nvidia Geforce GTX 260s were GTX 280s with disabled
stream processors.


2009/8/20 Jonathan Aquilina <eagles051387 at gmail.com>

> 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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