Thinking that there's too much of a green theme to its compact gaming machine, Dell has decided to mix things up a little and include an AMD graphics card option with the Alienware X51. The card chosen is the Radeon R9 270X and it is currently available only on the $999 X51 unit which comes with Ubuntu 12.04 LTS pre-installed and packs a Core i7-4770 processor, 8 GB of RAM, and a 1 TB hard drive.

The Radeon R9 270X option costs $100 more than the GeForce GTX 760 with 1.5 GB but is $100 cheaper than the 2 GB GeForce GTX 760 Ti (OEM card). The Alienware X51 (R2) is available here.