If processor itself at kung sakin ang pipiliin ko A8-6700k.. Budget friendly then May integrated na ciang R7 graphics na kaya i support ang games like CODAW and Dota2 , Ram nlng aayusin mo need mo ng mataas ng Freq for ram. Pero depende padin sa generation ni intel .
I would choose A8...than those i3...4 cores na ang A8 my integrated video card na. Gawin mo lang 8GB yung RAM mo kahit high end settings ng DOTA2 kaya.
Ung board na bilhin mo is ung meron HDMI at VGA... no need Vcard.. integrated na ang VideoGraphics nia sa processor itself.. supported nia upto 3monitors