Has the usual Intel HD Graphics 4000 and there is NO upgrade for the hardware.
The Intel HD Graphics 4000 is not for gamers. You can improve performance slightly with the known answers so I'll list them here and hopefully other folk can add more.
1. Try VirtuMVP.
2. Try it with maximum RAM (8GB) Link:
3. Set all games to lower settings. Less pixels, turn off sound tracks, effects.
Lately my system ( HP Pavilion g6-2103tu specs-http://h10025.www1.hp.com/ewfrf/wc/document?cc=us&lc=en&dlc=en&docname=c03315950 ,Windows 7 Home Basic 64-bit), has been responding very badly to any kind of games. The videos run at a very low fps and and the audio is slow as well, being repetitive and cracky. Surprisingly, this is the case with every game, be it FIFA 13 or the small-sized games like those of miniclip or the HP games like Farm Frenzy. I do not face any problems with playing HD movies or playing any kind of song.
Please help me people...!!!!