Alienware is the best perfomance laptop in graphic card is has 8 gb boost graphic card is cooling temperature system . 2tb hard drive and hard drive speed analyise by 5200 Rpm to 7200rpm and recovery speed is better than any hard drive .But still alienware has high weight laptop not comfortable to passing and it is gaming laptop hence the gaming pefomance is totally higher than macbook . core i7 is the best 6 generation clock speed perfomance .