[RC5] Strange Keyrates

lunaslide lunaslide at pacbell.net
Sun Jun 14 19:33:12 EDT 1998


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At 03:24 PM 6/14/98 -0400, you wrote:
>On Sun, 14 Jun 1998, Colin L. Hildinger wrote:
>
>> I think you're quoting a 6x86MX (M2) PR200
>> 
>	My 6x86-200+ (underclocked at 133MHz... my motherboard doesn't
>support the 75MHz bus) gets just over 300kk/s with X and the usual mess of
>daemons running, so 350kk/s doesn't sound too out of line for a 200+ clocked
>at the normal 150MHz. Also, if I'm not mistaken, the M2 is Cyrix's
>equivalent of the MMX, which doesn't affect the RC5 algorithm at all, so
>there shouldn't be any significant keyrate difference between the 200+ and
>the M2 200+.
>
>	My Pentium 133, BTW, only does 180kk/s at the same clock speed.
>Cyrices really are faster... :)

The cache memory is larger on the MX version of the Cyrix, so while the MMX
extensions do nothing for RC5, the extra cache does.  The effect is
similarly different between Pentiums and their MMX versions.


                                                                  
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