I wanted to buy a laptop for college as well as gaming purpose. I have shortlisted two laptops from lenovo. one is Z50-70 and other is Y50-70. Both of them have i7 processor and 4GB Nvidia Graphics card. But they are of different processing power. So i am afraid whether the Z50-70 model will be able to support everything whithout any problems? I am currently doing computer engineering so maybe i will need a more powerful laptop for it. Will the Z50-70 be enough?