Hm... I'm not sure whether I posted this in the right place. But I would like to ask, is integrated graphic better for 3D games or is discrete graphic better?

Integrated graphic

Better is a relative term, but to get the most from your 3D games a discrete graphics card is a MUST.

Absolutely --> add-in card will 98% always be better than onboard graphics chipset.

Then would it be possible for me to install both graphics?

Integrated, as the name suggests, is already on your motherboard.
Now why would you want to go to the trouble of installing a dedicated card and then use the sub-standard integrated solution ?

Well.. I suck at comps so forgive me if I ask nonsensical questions xD

Does that mean.. that if you have a integrated graphic on your comp you can't install a discrete 1?

No it means you don't need to use it if you install a separate card.

Oo I see.. thanks

The integrated one can usually be disabled in the computer's BIOS setup utility if you install a discrete one.