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The most relevant and important question consumers should ask when deciding what laptop or desktop PC to buy is "Which CPU Should You Buy?". In the PC market today,

buyers are torn between making a go at the Intel Core i5 and  i7. Besides the lower budget AMD processors, the powerful Core i9 or lower budget core i3 and m3, let's take a quick summary look at an outline for each of these two competing Intel processor line and explain what it all means if you are considering making your next desktop or laptop purchase.

  • Considering price, Core i5 is cheaper
  • But Core i7 has more capabilities than the Core i5. If speed is of concern, Core i7 is built for better multitasking, better multimedia tasks, high-end gaming, and scientific work.
  • The more cores you have in your CPU, the faster it will perform. Hence be sure about what number of cores exist in your i5 or i7. Usually the majority of both Core i5 and i7 desktop CPUs are quad-core processors. There are mobile versions of both processors that are dual-core. You might also see the six-core Core i5 or 10-core Core i7 if you are lucky.
  • Tip: Always buy a processor with a higher model number. For instance, an Intel Core i7-7600U generally has better performance than an Intel Core i5-7200U.
  • Core i7 processors have larger cache (on-board memory) to help the processor deal with repetitive tasks faster. On currently available desktop processors, whereas most i7 processors have up to 12MB, Core i5 processors have 9MB of L3 cache.
  • Check out for the feature known as Turbo Boost. It is an overclocking feature that allows the processor to run faster than its base clock speed when only one or two processor cores are needed (like when you're running a single-threaded task that you want done now). Both Core i5 and Core i7 processors use Turbo Boost, with Core i7 processors achieving higher clock speeds.
  • Does it have the feature known as hyperthreading? Hyper-Threading uses multithreading technology to make the operating system and applications think that a processor has more cores than it actually does. Hyper-Threading technology is used to increase performance on multithreaded tasks. All Core i7 CPUs use Hyper-Threading, so an eight-core CPU can handle 16 streams, a four-core can handle eight streams, and a dual-core can handle four streams. Core i5 uses Hyper-Threading to make a dual-core CPU act like a four-core one, but if you have a Core i5 processor with four true cores, it won't have Hyper-Threading.
  • Integrated graphics save power, since there's no extra graphics chip on your laptop or desktop's motherboard using power. The Graphics processing is part of the processor and far more efficient. You'll find Iris Plus and higher-end Intel HD/UHD graphics on Core i7 CPUs, while Core i5 processors feature one of the myriad versions of Intel HD/UHD graphics, depending on the part number.
  • Intel Core i5 is made for mainstream users who care about performance, and Intel Core i7 is made for enthusiasts and high-end users. Only extreme users need to consider Intel's Core X-Series


So when next you want to buy a PC, watch out for these features.


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