skylake vs haswell

Hi all, I currently have this laptop: HP pavillion g7 CPU: intel i5-2430M , intel hd 3000 GPU: AMD Radeon 6470M 1GB RAM: 4GB (~3.5 years old) This laptop currently over heats and i cannot play any games, even at lowest settings. i have an external table fan to cool the vents. I want to buy...