True CPU Speeds

[Guest]

Hey,

Is there any sort of Formula to multiply the MIPS and the CPU clock speed to figure out the true speed of the CPU?

For example, a 2.5GHz CPU with 7,500 MIPS, 'true speed' = ?

I use the term 'true speed' lightly as I do not know the correct term for the 'speed' I am looking for.

Just if there is a method of doing this, it will allow me to work out true processor speeds, to allow me to make much more accurate comparisons between vedors.

Cheers Sam...

[JAC]

The cpu speed is not as important as comparing chipsets / motherboards / ram etc.. between vendors.

Read tomshardware and anandtech.

Think of a V8 turbo engine in an old car with worn out tyres. Its not very good is it! This is what some cheap vendors do.. take a good cpu and put in a machine that has bottlenecks and poor performance.

[Guest]

Hi,

if you multiply clock speed to the base MiPs then you get the total Mips, but the MiPs for each proc is detailes as per the CPU and is its total.

If you over clock this CPU you will get a better MiPs but chip manufacturers noramly don't give out the Mips per clock cycle.

[JAC]

?

pointless.

"Clock speed is one measure of computer "power," but it is not always directly proportional to the performance level. If you double the speed of the clock, leaving all other hardware unchanged, you will not necessarily double the processing speed. The type of microprocessor, the bus architecture, and the nature of the instruction set all make a difference. In some applications, the amount of random access memory (RAM) is important, too.

Excessive clock speed can be detrimental to the operation of a computer. As the clock speed in a computer rises without upgrades in any of the other components, a point will be reached beyond which a further increase in frequency will render the processor unstable. Some computer users deliberately increase the clock speed, hoping this alone will result in a proportional improvement in performance, and are disappointed when things don't work out that way."


http://searchsmb.techtarget.com/sDefinition/0,,sid44_gci211799,00.html


They said it better than I could and I was too lazy to type it out.

The days of RAW cpu power as a base measure are GONE. You HAVE TO TAKE INTO ACCOUNT THE REST OF THE SYSTEM AND THE APPLICATIONS.


A classic noob error.