[RC5] Prescott Performance and New Core

Brad Tod brad_tod at yahoo.ca
Fri Feb 13 20:45:34 EST 2004


Could it pass the Athlon in efficiency?

Steven Nikkel <steven_nikkel at ertyu.org> wrote:The newly announced/released Pentium 4 Prescott contains some potential
performance inprovements over previous versions of the Pentium 4
processor. Specially the shift/rotate unit has been moved from the complex
integer unit to one of the simple integer units. This means that a rotate
can be completed in half a clock cycle as opposed to the previous 4-6
clock cycles. Since RC5 depends heavily on a rotate instruction this
improvement potentially could increase the Prescotts speed. Of course a
new core needs to be developed to take advantage of this redesign.

http://www.digit-life.com/articles2/roundupmobo/intel-prescott.html
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Later,

Brad

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