Without knowing what you intend to use the computer for it is hard to say how they will stack up. Let's assume you want to check email, social media, browse the web, play some music and videos, manage your accounts and tax, etc. Either will be more than capable. You'll get more for your money with an iMac, but at the cost of portability. The iMac give you more screen real estate which is nice if you are working on multiple documents.