Well these days the game BattleField 3 was free to everyone download, so i and my friend downloaded it.
We have a similar notebook(i've one notebook with i5 4gb of ram and intel hd graphics 4000, and he has a very similar one, i dont know if its the same onboard graphics card, but everything else(minus the ram, that is 8gb) is equal)and on his notebook the game ran well with medium graphics and full resolution.
On my notebook, it only have ran in 30fps with 640x480 of resolution and low graphics.
What can i do to fix it?
EDIT:
With the last driver update, its a bit better(something like more 10fps ), but i think that my pc can do better.
