[RC5] Performance on P-IV

Basil A. Daoust basildaoust at home.com
Thu May 10 16:14:02 EDT 2001


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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