I am typing this on an AMD APU system that claims to have an integrated Radeon HD 8400, and I can assure you that it is terrible gutter trash and is barely functional with any significant applications running.
So, just like having a real Radeon then?
I kid, I kid. I'm not going to look that one up, but a lot of these integrated chipsets are nothing like what the model number would imply. I remember nVidia outright changed the name they were reporting for a couple of different integrated video chipsets, without actually doing anything to improve performance. That was worth a snicker, too.