As far as laptops go, that's about the best GPU you can get without spending a ton of money. If you could find one with an A8 CPU for not to much more that would be a better way to go, but as it is now I'd be suprised if you weren't able to play assassin's creed on it, even at low graphics.
By the way, are you sure it's not a 6670? AMD's apu's use dual graphics with the 6000 series so I'd think that's what they would put in laptops. Or maybe it's different on mobile platforms.