[rc5] Various results, various CPUs

root marcus at dfwmm.net
Sun Jul 27 11:41:23 EDT 1997


Anssi Saari wrote:
> 
> In article <33DAA91E.16DCAA78 at dfwmm.net>, root <marcus at dfwmm.net> wrote:
> 
> :>The total cache space is larger in the Cyrix chips
> 
> Hmm. The 6x86 has 16K unified. Doesn't exactly explain why is it that
> the 6x86 is so much faster than Pentiums.

Not completely, but this means that almost all of that 16K is
available for instruction storage if the data storage
requirements are light. Which, in the case of the rc5 code,
they are. There is also a primary, instructions only, cache of
256 bytes. Since the new mmx procs from intel have split 16k
code/16k data caches, that might just be the difference in
addition to the simply superior integer oriented execution
units in the 6x86.
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