Difference between Intel Core i3, i5 and i7 in a Nutshell
To conclude in a statement, Core i7s are better than Core i5s, and Core i5s are better than Core i3s. The main reason here being performance. In general, Core i3 chips are found in budget PCs and low-end laptops. For a normal user who does browsing and watching videos, Core i3 works just fine. Core i3s have a low Cache size.
The mainstream or mid-range systems usually have i5. Systems with Core i5 are good for a moderate user and light gamer.
The Core i7 CPUs are reserved for – and found usually in – high-end, expensive laptops and PCs. These are used by users who wish to do video editing( For example using premier pro), Lot of Gaming and other CPU intensive stuff.
Number of cores: Core i3, i5 and i7
The first thing you’ll notice from the table is that Core i5 and i7 processors have four cores, while Core i3 models only have two. Out of all the differences between the Intel processor ranges, this is the one that will affect performance the most.
Each core is effectively its own processor – your PC would still work (slowly) with just one core enabled. Having multiple cores means that the computer can work on more than one task at a time more efficiently, which will help keep your system running snappily even if you have tasks, such as an antivirus scan, running in the background.
Having several cores can also drastically increase the speed at which certain programs run. This doesn’t apply to all applications, as creating software that takes advantage of multiple cores is difficult. While two cores are now the accepted minimum in a processor, if you generally only tend to have a handful of tabs open in a web browser and your most demanding application is a word processor, you won’t see a huge benefit from a quad-core chip. However, modern games benefit from quad-core chips as does video encoding.
Coming to the big brother- i7, it has comes with anywhere from 2 to 8 cores with Hyper-Threading, Turbo boosting and Overclocking abilities.
Core i7s are the best Intel has to offer for general consumers while Core i3s being the most affordable in the series ( forget Pentium).
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