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You'll need a "gaming rig". That's the simplest way I can put it. Don't buy an "ultrabook" or an "all in one" or some $500 laptop to use Oculus. Whether it's a PC (cheaper) or a notebook, it needs to be gaming-focused one. In terms of specs I'd buy a GPU with at least a 3TF performance, and even that it's probably going to be "mediocre" for the next 2 years. 2TF should work, too, but might not last you too long, espe…
Everyone I know has a gaming rig of some type, but not anything that can do 1080p per eye at 60fps per eye, which is where this stuff actually starts to work correctly and what Oculus is designed to use (less motion sickness, better 3D illusion, etc). I don't think a lot of people interested in this technology realize how much hardware they will need to buy to make this work. You're looking, at minimum, a $400-500 gr…
My experience was very smooth and playable for hours. On a Mac. With laptop graphics. I'd definitely build a machine around a 980 next, but the tech is perfectly accessible.