ITreviewed posted a review on the Alienware M17 Gaming Laptop

By incorporating the all-out performance of CrossFireX graphics and quad-core processing, the M17 delivers an impressive feature set at an aggressive price point. Gaming is where the M17 really shines, and it makes an able job of it with two ATI Mobility Radeon HD 3870 GPUs in a CrossFireX configuration. As a result, this monstrous desktop replacement runs modern games at respectable frame rates. Unpredictably, it goes without saying that M17's battery lasts for around 90 minutes, so it'll spend most of its life tethered to a wall. The M17 is definitely worth considering if you're a gamer on a budget, but get carried away with the options and you'll easily walk away with a 450 bill.

Alienware M17 Gaming Laptop Review