You probably can't upgrade your laptop part by part like you'd do with a PC, that's because PC parts like GPU,RAM,etc are made very differently from laptop. So normally they don't sell the separetely.
If you'd like to game on a laptop, you should probably buy a new one with the specs you desire already built-in inside it.
And, i think you won't be able to run PES 2016, not at least with decent fps