At the high-end, you can upgrade to a Core i7, 8GB of RAM, and a GeForce GTX 660 with 1.5GB of RAM for $1,049.
As a "slim" model, the PC is 12.5 inches high, 12.5 inches long and 3.74 inches wide.
By moving to Linux, you can save $100 off the base model compared to the Windows 7 equivalent.
Dell says you can play 90 games with the gaming PC, thanks to Steam for Linux, which is a disappointing number compared to the almost 2000 games available for Windows PCs.