All of the Radeon RX cards are powered by AMD's new Polaris architecture, which is built on a 14nm FinFET (a type of 3D transistor) process. That allows them to draw far less power than the company's previous cards, while also packing in more graphical performance. AMD says the RX 480 will be able to run games at 1440p with high settings, and it'll meet minimum requirements for VR headsets, both of which are things you've previously needed to spend upwards of $300 to achieve.
AMD's new lineup isn't just about desktops, either. Its new chips can be scaled down to ultraportable desktops to offer 1080p gaming experiences at 60Hz. Previously, gamers who wanted powerful laptop experiences only had NVIDIA GPUs to choose from.
By targeting lower price points, AMD is aiming to differentiate itself from NVIDIA, whose new GTX 1080 and GTX 1070 GPUs are now the go-to choices for high-end and midrange gaming.