It denotes your processor’s generation.Īfter you’ve finally found out the exact specs of your Mac’s CPU, let’s break it down into specific details to be able to conduct a proper processor speed comparison.
In general, hertz (Hz) is a measurement of frequency or, as often defined, cycles (of something) per second. All the contemporary CPUs are so fast that they are measured in gigahertz (GHz), or billions of cycles per second. Naturally, the higher the number the more operations your Mac can complete. So why not always get the highest number possible? Well, first, it’s the cost: in general, you pay more for a processor with more GHz. Second, putting the max GHz processor in your Mac would be more taxing on your battery and in some cases could even lead to overheating. Third, if you often don’t do tasks where billions of processes per second matter (e.g. video games, compositing, virtual reality) then you don’t get any substantial benefit from having them at all. Once you’ve understood the GHz meaning in CPUs, you might think of yourself as a master in processor speed comparison. For example, which do you think performs better: a 1.5 GHz dual-core Mac or 1.7 GHz single-core one? You’ll be wrong to go for the highest GHz number here - you also need to consider the number of cores.Ĭores are essentially independent processors within your CPU. Since each of them has the same capability in terms of GHz, the number of cores in your Mac is basically a multiplier for your processing power.
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