i really wish you wouldn't double post then delete the double while i'm writting
you need a minimum of i3 + graphics from nvidia or ati(amd) - as good as you can afford. you could find something on sale i guess... but it will do just some casual gaming, no high res or high details. the apu-s from amd A6-A10 also do a bit of gaming on a budget but again, dont expect to play the latest games or at high resolutions/detail levels.
real gaming laptops come from alienware, asus rog, msi gx series, razer, digital storm, etc but they cost north of 1500$ for a start config.