How to Compare Computer CPUs
The central processing unit (CPU) is responsible for carrying out all the major functions of a computer. CPUs have several different factors that affect their performance. Before purchasing a computer, review its CPU specifications.
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Frequency
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The CPU frequency represents the speed at which the processor performs functions. Current processors run at speeds of 1GHz and higher. CPUs with higher frequencies usually operate faster than CPUs at lower frequencies.
Thermal Power Design
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Thermal power design (TPD) indicates the amount of power (in watts) that your processor consumes when working hardest. The TPD also indicates how much heat a processor will produce. A lower TPD number will lower the cost of your monthly electrical bill, as well as protect your computer from overheating.
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Cache
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The CPU Cache refers to the quick on-board memory on the processor. The cache stores data that you either use frequently or are about to use. A larger cache means the processor can store more data, thereby increasing performance speed. A smaller cache will slow down the computer's processing capabilities.
Cores
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When CPU manufacturers could not get their CPUs to perform any faster, they started adding multiple CPU cores onto a single chip. This resulted in a CPU that can run several programs simultaneously without slowing down your computer.
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References
- Photo Credit cpu 1 image by Robert Molnar from Fotolia.com
