AMD mobile and non-mobile are exactly the same chips. AMD take the best "normal" cpu and marked then as "mobile". So they can be run at lower voltage. And they don't lock the multiplier on it, so in laptops the CPU will adjust is speed depending on the processing power needed or power management configuration.
It's why you cna buy Mobile AMD and put them into your home PC, they use the same socket.
Would you buy a potato powered chipset?