While each model can be configured with up to 4K displays ... The 480Hz option is but another screen configuration for the already launched Alienware X17 R2 and M17 R5 (costing $300 to upgrade ...

Elsewhere, Alienware's rig has fast storage, a high-quality keyboard, a 4K screen with vibrant colors and decent everyday connectivity. We didn't find any glaring issues with the x17 R2.