In my opinion it is not impossible however most if not all chipsets are internally soldered in your laptop motherboard. Intel can't do it. Only the laptop manufacturer can if they are willing. So the best solution to your problem is to replace or buy a new unit (a gaming type unit). For gaming a desktop will provide more flexibility when it comes to games than a laptop.
Alright, i am kinda on a budget so i wanted to make sure it could not be replaced so thanks.