The Core i5 is going to be a computer that is more expensive than a PC with a core i3 but it’s going to be more powerful and be able to allow you to work with larger programs. A step up from the Core i3, i5 processors will give you a noticeable difference in speed, depending on what type of applications that you run. If you are playing minesweeper, you aren’t going to be able to tell a difference between Core i3 and Core i5 processors. If you are editing multiple files in Adobe Flash, with virtualization software, playing the newest RPG computer game you may notice the Core i5 to be much more faster. The Core i5 is great for people who use their computers frequently for programs that require more power from your computer and for people who multi-task.