CPU is the brain of computer and we know it must work accurately and fast.Not only the speed but it should also give the corect results to make our work easier so if we choose the fastest model in each category of CPU then it will work more faster than we desire.So it is the good method for choosing a CPU.
Looking at a chart of CPU's can be very helpful. You may want to research a couple of your best CPU's before because some CPU's can be overclocked better than others.
straight line method
the stick model method
The stick model method.
eating it?
conduction
Rocketry.
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Benchmarking is a commonly used method in measuring performance.
performance appraisal used in sony
The fastest was train travel.
internet
Normally if you are buying something for say the internet, the fastest shipping method is usually overnight, air shipping, but your question is kind of vague so it is hard to say exactly.