It will perform pretty good on games for a laptop. But, ask yourself if you want a 17.3 inch laptop that weighs 7.1 lbs and will probably lack on battery life. My lenovo is 15.6 inch and 6 lbs with dual GT 650m's. It gets 3 hours of battery life sitting there barely browsing the web. Gaming is better on a desktop PC, I only have my laptop with power because I like my photography on the go.
For schoolwork, consider something with less weight/size and better battery life. and use leftover money for a good desktop.