Here is some detail from Alienware...
The Best Mobile Gaming Experience in the Universe
High Definition Visuals: With the available 18.4" Full HD (1920x1080) backlit WLED display, you'll be able to crank up resolution on your favorite games or multimedia.
Get desktop performance in a laptop-sized package. It’s the ultimate unfair advantage: the Alienware M18x laptop delivers the power you need to obliterate anyone or anything that stands in your way.
Advanced Memory Options: The Alienware M18x laptop comes locked and loaded with up to 32GB of DDR3 RAM at speeds up to 1600 MHz for the ultimate multitasking experience.
New Hybrid Hard Drives: It's a win-win situation for every gamer: the SSD performance you crave, with the HDD capacity you need. Are you looking for the colossus of hard drive options? Select an optional dual RAID 0 configuration for extreme performance.
One-stop Gaming and Entertainment Center
Go beyond gaming! Whether you want to watch movies, listen to music or connect with friends, the Alienware™ M18x lets you turn your gaming laptop into a home theater system, anytime you please.
Watch, Play, Connect: Hook up any compatible device with an HDMI output to your Alienware M18x or catch your favorite shows with an optional TV tuner and remote.
Go Big: Enjoy intense 3D gaming by connecting to a compatible 3D TV via HDMI 1.4 or ditch the wires entirely. With optional WirelessHD you can wirelessly blast 3D or Full HD games to any 3D-ready device. 3D viewing requires additional equipment, sold separately.
Big Sound, Small Speakers: Get more immersive gaming than you ever expected from a laptop with audio powered by Klipsch®. Or, wake the neighbors with support for up to 7.1 Surround Sound Audio.
Command and Customize
Control and personalize your system from the user-friendly Alienware Command Center.
AlienFX™ Lighting Controls: Show your attitude! Choose from an array of color and transition effects and assign them to distinct zones, including the keyboard, touchpad and more. AlienFusion™ Power Management: You decide when you need maximum performance, or when to scale back power for less intensive applications. AlienTouch™ Touchpad Controls:Customize your touchpad’s sensitivity to prevent accidental contact, and activate virtual scrolling to enable vertical and horizontal scrolling with just a touch. AlienTactX™ Macro Key Controls: Let your keys do the clobbering. M18x comes with 5 programmable keyboard keys, for up to 15 distinct functions per application. Pre-Loaded and Ready to Own: Steam®, the popular digital distribution gaming software, can be pre-installed on your Alienware M18x laptop. Opt to have Eve Online, the popular sci-fi MMO, preinstalled as well so you can stop wasting time and start playing! Mark of the Conqueror: Laser cut and etched in metal for all time — your Alienware laptop comes with a custom engraved name plate. Mark your M18x with your name, clan, nickname or a threat of dismemberment to anyone that touches your system.