i7 is terrible for gaming, be it on laptop or desktop version. The reason is hyperthreading, that thing with ARMA II drops 10% of performance. Meanwhile other games you might have a max of 4% of performance. i7 for any versions is terrible for gaming, and laptops are kind of worse, if the purpose is gaming. Always go for a PC, seriously. I've been a Laptop Gamer for more than 3 years and I know what I'm talking about.