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CPU Performance

A

aantoine90


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PowerBook G4 12 inch 1.33 GHz 512MB RAM
What is the definition of CPU performance? I know there is some equation or something...? I just don't remember! If you could help me out, that would be great! Thanks!
 
witeshark

witeshark


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G4 1Ghz OS X 10.4.7
There is no useful equation. CPU clock speed means very little. If you wanna know how fast a system will be, find out what the front side bus speed is
 
T

technologist


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12" Apple PowerBook G4 (1.5GHz)
Yeah, there really isn't one.

You could say, "The amount of time a CPU takes to perform a given operation." or "The number of times a CPU can perform a given operation in a given time." But both would depend on the operation in question, which could be pretty much anything.
 
E

Ex_PC_Puke

Guest
aantoine90 said:
What is the definition of CPU performance? I know there is some equation or something...? I just don't remember! If you could help me out, that would be great! Thanks!
Click to expand...


In the old days it used to be the number of instructions executed per second. Which you could still do on a CISC or RISK CPU - but its really a very artificial means of measuring performance - meaning it doesn't include the real overhead of runnning a full blown OS (ot the benefits if the OS is well written) etc. etc.
 

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