If you are mainly gaming then choosing an i5 and a more powerful graphics card is better than choosing a CPU and slower graphics card. Gaming at 1680x1050 won't be hard with either of those cards though.
Also if you are comfortable with it, you could get a AMD FX-8350 which is faster and cheaper than an i5-4440. Would be about 10-20% faster. The AM3+ motherboards are also cheaper.