My sorceror in my current game has average (10) int. He does magic, but ain't hot on the technical details. Skillwise, he's got a bit of knowledge: arcana, but no spellcraft. He's got reasonable concentration and maxed out bluff (including a snake familiar). He doesn't think his way out of situations, he either talks or blasts his way out.
If I'd've wanted an intellectual spell caster, I'd've picked a wizard.