"Laptop"
I think I found your problem.
NVIDIA is the ONLY choice for LAPTOP GPU!
AMD's best mobile GPU is R9 M290X, which is nearly equal to GTX 870M. Superior NVIDIA GPUs like 880M and 970M and 980M blows AMD to SH1T.
As with destop GPUs, AMD has got its market on low end. In the market of lower than 1,500 CNY (USD 250), AMD has superior performance than NVIDIA at the same price, at the cost of bigger power consumption. The buddy above has purchased 750ti and I'd like to see if he insists on his choice when he uses R9 270 (assuming that he has sufficient wattage on his PSU).
AMD GPU's biggest problem: Power consumption. High end competition results in overheated R9 290X and that's something consumers won't want to see. Also, this terribly limited AMD's ability at laptops when energy and cooling are problems.