Difference between intel core i3, i5 and i7 processors

In our previous PC Guide article we have discuss different types Intel CPU. The Intel core i3, i5 and i7 processors are the most popular and the most used CPU in PC market today. When you a buying a laptop/building a PC, one of the main component you have to buy is the CPU.

Now you have to decide if to go  Intel core i3, i5 or i7, well most people by now knows the basic difference, the Core i3 for basics users, core i5 for mainstream/moderate users and Core i7 or enthusiasts/ heavy-users. But what the real difference between Intel core i3, i5 and i7 CPU.

Well generally Intel core i3, i5 or i7  of the same architecture are very similar to each other. They have same instruction sets and fit in the same socket. The really difference is in their number of cores/threads and cache size.

Related: Which CPU is the Best Intel or AMD

Intel core i3

Intel core i3 is an entry-level  processor which is recommended for basics tasks like word processing, basic browsing and watching vidoes(not 4k). generally the Core i3 preformaces better than Intel Pentium but worse than Core i5. Most Intel Core i3 features include:

  • Have 2 cores
  • Support Hyper threading
  • Have smaller Cache
  • Use less power 
  • less expensive

Related:  Intel CPU

Intel core i5

Intel core i5 a mid-end processor which is recommended for mainstream/moderate users. like people that do a lot of video or photo editing, gaming and heavy browsing. Intel core i5 is the most recommend processor to get, and if you are not an intense heavy user you don’t really need a Core i7. Most Intel Core i5 features include:

  • Have 2 or 4 Cores
  • Support Turbo boost
  • Improved on-broad graphics
  • More Cache
  • less expensive than core i7 
  • Support Overclocking

Intel core i7

Intel core i7 is an high-end processor which is recommended for enthusiasts/ heavy-users. A Core i7  is generally expensive, but buy one if you do a lot of video editing, particularly 4K, high-end multimedia workloads (such as game streaming) or other processor-intensive tasks. Or who just want to show off. Intel Core i7 features include:

  • Have 2 to 8 Cores
  • Faster Turbo boost
  • Support Hyper threading
  • Improved on-broad graphics
  • More Cache
  • Use more power(10w-130TDP)
  • Support Overclocking

Example of difference between Intel core i3, i5 and i7 processors

Core i3-4350 Core i5-4690 Core i7-4790
Price                $155
3.6 GHz
3.5 GHz
3.6 GHz
3.9 GHz
4 GHz
L3 cache
3 MB
6 MB
8 MB
GPU model
HD Graphics 4400
HD Graphics 4600
HD Graphics 4600
GPU frequency
350–850 MHz
350–1200 MHz
350–1200 MHz
24 W
54 W
84 W

Watch Video Explanation


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