That would be best, but nvidia does generally cost more, especially with laptops. I went for a HD7970M rather than a 680M because the 680M would have added 50% to the cost of my laptop which cost about $1500, and caused a very slight performance loss (yes, loss)Get a laptop that has an NVidia GPU would be my advice.
I kind of wish I didn't because I've had a lot of trouble with BSoDs related to switchable graphics on that particular GPU and so have a lot of other people when looking online. Switchable graphics can be problematic with other GPUs but it seems especially bad with older AMD generations. It seems to be working fine now though, it was far more problematic on Win7 where I couldn't use the latest driver from AMD but had to use a specific driver from Clevo or the modded UniFL drivers or it would BSoD loop, but since I upgraded to Win10 I can use any driver I want without running into BSoDs.
At the same time, the hours that have been spent troubleshooting BSoDs still don't justify spending 50% more on an equivalent laptop with nvidia.
Don't take that as a recommendation to stay away from AMD though. I believe they've gotten a lot better since then. If the price difference is big AMD is probably still be the better choice.