Millions of people will buy VR headsets in the coming years to play games and view 3D content, and those sales could spark a real-world war among chip makers.

Some new VR headsets announced at this week’s Game Developers Conference in San Francisco are full-on computers, and others need to be hooked up to PCs with powerful graphics cards, similar to Oculus Rift.

The VR devices, designed for gaming and for roaming 3D worlds, are a showcase for the graphics technologies of chip makers like AMD and Qualcomm.

The headsets set up a battle in the fast-growing VR space among chip makers, which also include Intel and Nvidia. The war among chip makers comes with a twist because it places a large on emphasis on GPUs, which are important for rendering 4K video and 3D content.

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