DESC: Alienware M18x: The Most Powerful 18" Laptop in the Universe. With powerful graphics options including NVIDIA SLI and AMD CrossFireX technologies, the Alienware M18x delivers desktop performance in a mobile chassis. Put the competition to shame with an optional factory-overclocked Intel Core i7 Extreme processor. If an 18.4" full HD display isn't big enough, you can wirelessly blast 3D games and HD content to any properly equipped external display.