Emorphasiss

Prime95/Aida64 to stress test it (make sure you check the temps).
Cinebench is good for benchmarking in my opinion. 

There are more important things to consider in a laptop than just CPU/GPU performance
 
the display, the battery life, weight, keyboard etc
 
thats why retina macbook pros are so popular with mobile editors, very powerful, small package, well built, amazing displays etc