My laptop has the Radeon HD 7970m, and honestly if I'm able to I'll be using nVidea from now on. The card is okay and runs games fine for the most part, but I've had an array of issues. The catalyst control centre has freaked out on me on numerous occasions, causing the program to crash randomly. Also Far Cry 3 simply can not be played without these weird semi-transparent squares showing up on the screen. If you google that problem you'll see it's something exclusive to AMD cards, simply because the game was made with nVidea in mind.

So yeah, the card is fine for the most part, but it seems like nVidea has less issues overall.