Subject: Re: Performance of different processors
From: Martin
Date: 12/09/2003, 14:33
Newsgroups: alt.sci.seti

"Alex Smariga" <ZAlex07@Smariga.com> wrote in message news:NdncLKSOjoHH-pn2-665dlUEGz2ic@localhost...

I'm running Seti (3.03 and 3.08) on a range of processors and operating systems.  I'm trying to understand why there is such a variation between processors and versions. ...


[... Lazy irritating top posting shifted to make sense ...]
Erez Volach wrote:
Actually, it makes quite a lost fo sense. It depends on CPU architecture and efficiency most of the time, and also MOBO
technology (northbridge and memory). Your P3 at 800 would supposedly
do half time with double speed, at 1600 but, as there's not P3
running so fast, we look up (or down, in reality) P4, that
at 2400 (3X times "faster") not even managing twice the performance. a P4 Celery, at 2000 is just somewhat faster, although more than twice the "speed". OTOH, the Athlon XP (being somewhat faster than an
Athlon, which is
somewhat faster than P3) is managing at 1533 (true "speed" of 1800+) to be almost linear with the performance of the "old" P3. At that speed  (1533) it
is so much better than celeron (2000) and on par with a 2400 P4. As
for the discrepancy between the P4 2.4 results - they could be due to motherboard, memory amount, speed and / or latency settings, OS, other system factors or the version used.



See Roelof's page for an excellent explanation:

http://www.cox-internet.com/setispy/efficiency.htm


Happy crunchin'
Martin


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