[RC5] Performance on P-IV

Enojon enojon at ATTGLOBAL.NET
Sat May 12 16:22:57 EDT 2001


$/ wu processed ?
$2899 / 3.5Mkeys
$2500 / 8.8Mkeys [approx street price for dual G4's @ 450Mhz]

----- Original Message -----
From: "Basil A. Daoust" <basildaoust at home.com>
To: <rc5 at lists.distributed.net>
Sent: Thursday, May 10, 2001 4:14 PM
Subject: Re: [RC5] Performance on P-IV


G4-400's kick but so does the price.  $ for $ a Athon wins every time.

RogerKIWI at aol.com wrote:
>
> In a message dated 5/10/01 12:17:54 PM, rmalayter at bai.org writes:
>
> >That said, a P4 can be very fast when code is optimized for it. And RC5
> >cracking is a very specialized use of a processor - it is in no way
> >indicative of the processor's general performance potential. All of the
> >cores in the current "official" dnet client are specifically
hand-assembled
> >for the P3 or Athalon architectures. Similarly hand-optimized P4 cores
> >might make it a faster dnet machine than anything else out there.
>
> Hmmmm my 450 MHz G4 runs just a whisker over 4,000,000 keys/sec per CPU.
(I
> have a dual processor, so run just under 8 MegaKeys/sec when I'm not doing
> much else.
>
> That's 8,889 keys per MHz.
>
> >From the original message
>
> >My AMD Athlon 1000 (1 GHz) scores a friggin' absolutely awesome
3,538,971.00
> >Hahaha a 1GHz Athlon is almost TWICE as fast as a stinking P-IV 1400
which
> >has 400MHz more under ít's belt.
>
> This means the Athlon under Linux runs 3,539 keys/MHz.
>
> which is what the site http://www1.distributed.net/~fordbr says, showing
that
> the Athlon is by far the most efficient of the x86 type chips, but still
not
> even managing half of what the G4 PowerPC chip can do with optimised code.
>
> plink plink
>
> Roger
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