Search Can I Run This , on the site select Far Cry 4 and it will tell you your specs and the recommended specs and the mininum and then it will state wether you can run it.
Do not buy FC4 for that laptop. You will not be able to run it! If your specs were twice as good, then you could run it. Your gpu and cpu is really crumby and you need at least 8gb of ram.
Hope it helps!
if the i3 supports hyper threading then yes.. if not then no.. far cry 4 requires a hyper threading dual core or a quad core to even launch... if it does have heperthreading you should be able to play at bare min settings and resolution...