Like the tittle says^ Is it physically impossible for the 13' retina and non retina macbook pros to have a dedicated graphics card? I m asking because i own a ultra Asus laptop and it has a gt620 on it as well as the intel hd4000. And its even thinner than the rMBP. Why wont apple put a dedicated gpu inside? is it because its impossible ? or they are too lazy? Thanks for the answer.