Now that Oculus has officially opened preorders on the Rift, the question of the day is whether a potential buyer's headset can support it. The Rift, along with HTC's Vive, requires what's currently a $1,000 (or more) PC with a top-of-the-line graphics card, capable of rendering high resolutions and super-fast framerates. Gaming hardware company Nvidia, which makes many of those graphics cards, recently estimated that only 13 million PCs will fit the bill next year.



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