Differences between AMD and Intel CPUs [was: Re: Dragonfly andHyperthreading....]
Joerg Sonnenberger
joerg at britannica.bec.de
Fri Mar 11 09:28:24 PST 2005
On Fri, Mar 11, 2005 at 08:37:17AM -0800, Boris Spirialitious wrote:
> Yes, I agree here. We have FreeBSD machine that
> we get device timeouts and it running at very
> high usage using 2 intel nics on motherboard.
> We find out these are only running 33mhz and
> we put 2 port intel pcix card in machine. Now it
> run 30% all day. Everything else the same. pcix is
> very good and important.
I think that's a more the fault of Intel's memory architecture
and not so much of PCI-X. Keep in mind that Intel doesn't use
a point-to-point bus like AMD / DEC, so the CPU has to fight
with the host-to-PCI bridge for the memory access. This is
something which doesn't affect the CPU on AMD systems at all.
Joerg
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