One usual fallacy is to consider the computer with the largest clock rate as having the largest performance. check if this is true for p1 and p2.

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adrianavargas1087 adrianavargas1087

06-01-2018
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One usual fallacy is to consider the computer with the largest clock rate as having the largest performance. check if this is true for p1 and p2.

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ahmedishaal ahmedishaal · Answer 1 · 2018-01-19T14:46:47+01:00

Processor Clock Rate CPI Instructions
P1 4 GHz 0.9 5.0E9
P2 3 GHz 0.75 1.0E9
According to these values; when we calculate TP1 and TP2;
TP1= 0.9 x 5 x 109/ 4 x 109= 1.125 seconds
TP2= 0.75 x 109/ 3 x 109= 0.25 seconds
Thus, in this case P2 has better performance because of its lower CPI and number of instructions.

Kalahira Kalahira · Answer 2 · 2018-01-19T23:15:12+01:00

Kalahira Kalahira

19-01-2018

A computer with the largest clock rate does not mean it will have the largest performance. By overclocking you may be able to reach the maximum capacity of a CPU, but perhaps buying an upgraded CPU with more processing power will out do the former computer minus the overclocking method to the latter upgraded PC.

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