Everytime someone asks me for PC configuration I always ask 2 things.
- What is your budget?
- What are you going to use it for?
You already answered the first question, now we would need to know what you are going to use your computer for.
Unless your a benchhead, gamer, photo or video editor, I would suggest sticking with the i5. There is no significant performance advantage between the i5 and i7 and you can use the money saved in another place such as memory, storage or video card. It of course depends on what you will use the laptop for. For basic internet surfing, school work, media player work etc. You don't need much more. But for gaming it can get expensive real fast if you want to play in the highest resolutions possible.