What is the difference between 2ghz and 3.6ghz processors?
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Answer:
central processing unit in a computer, smart phone or other digital device, runs programs as a series of basic individual instructions. A processor can run a certain number of instructions per second. The number of instructions it can run in a second is known as its clock speed, and this number is typically given in megahertz (Mhz) - meaning millions of instructions per second - or in gigahertz (Ghz) - meaning billions of instructions per second.
A 2.6-Ghz processor, therefore, can run 2.6 billion instructions in a second, while a 2.3-Ghz processor can run 2.3 billion instructions per second. This isn't that significant of a difference, but it's something to consider, if you're comparing two computers with those specifications. If you're buying a new computer today, it will likely have a much faster processor than 2.6 Ghz.
Generally, processor speeds have increased, as computers have become more sophisticated, so it's normal to expect that you'd get a faster processor each time you replace a computer or phone. It's one of a number of specifications you might look at when you're selecting a device.
When Processor Speed Matters
A faster processor will help you run a more diverse range of software. Some programs will specify a minimum processor speed needed. Make sure that any software you buy will run on your computer before you shell out money to buy it. Video games are especially known for requiring speedy processors and other high end system components in order to run smoothly.
Programs will generally run more smoothly on a faster processor. While you may be able to use a slower processor for basic Web browsing and word processing, you might experience some delays playing games, editing audio, graphics or video or when doing other demanding tasks. If you're not sure which processor is right for your needs, take a look at the software system requirements, read reviews or ask a technology expert.
Other Processor Factors
The clock speed of a processor isn't the only factor when you're thinking about its efficiency. Many processors now have multiple cores, which are effectively separate processing units within the chip. Generally, processors with more cores can run more tasks in parallel, effectively making them faster.
Processors also contain a limited amount of cache memory, where they can store data for fast access. More cache generally means a speedier processor.
You may also want to take into account how much energy a processor uses. Modern processors have gotten more energy efficient, but faster processors can require more energy than slower ones.
Other Computer Speed Considerations
The processor isn't the only factor determining how fast and how smoothly your computer runs. Generally, computers with more random access memory – or RAM – run more smoothly, since they can store more data in that relatively speedy storage medium, as opposed to the hard drive. Additionally, some RAM is speedier than other types of RAM.
Computers that have solid state drives – as opposed to traditional hard drives – can also be faster, since those disks load information more quickly. If you're doing a lot of online work, you may also wish to think about how fast your internet connection is, so you can upload and download data more quickly.
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References (3)
Computer Hope: Clock Cycle
Arrow Computers: How Do I Compare Different Processors (Dual-Core? i3? Ghz?)
ExtremeTech: How L1 and L2 CPU Caches Work, and Why They’re an Essential Part of Modern Chips
About the Author
Steven Melendez is an independent journalist with a background in technology and business. He has written for a variety of business publications including Fast Company, the Wall Street Journal, Innovation Leader and Business BVI. He was awarded the Knight Foundation scholarship to Northwestern University's Medill School of Journalism.
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