Re: AM2, X2, Opteron, or Opteron Socket F?

[Arjan van de Ven <arjan@xxxxxxxxxxxxxxx>]

On Sun, 2006-08-20 at 16:27 -0400, Bryan J. Smith wrote:
> On Sun, 2006-08-20 at 22:08 +0200, Arjan van de Ven wrote:
> > eh that's so not the case ;)
> 
> Can you expand upon that?
> 
> The NetBurst architecture had ALU and FPUs that were much slower per MHz
> than the PPro-P3.  

they had a different design goal (mhz mhz mhz).. so your argument that
they're the same is disproved just by your statement here already.

> Slapping on SSE pipes is _not_ redesigning the FPU.
> 
> > what does a "true interconnect" buy you in the <= 4 CPU case?
> > Or an IOMMU if all your moderate and high bandwidth IO is 64 bit
> > capable?
> 
> Can you guarantee all your I/O is?

you can if you pick your system with a tiny bit of care. Basically all
gige nics are 64 bit capable (maybe a $4 nameless one excepted), and
AHCI sata is too. All scsi that was made in the last decade is as well.
Nobody makes high speed pci cards without it basically, and the on board
stuff is normally ok as well.

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