Graphics cards! So hot right now. Whether it's the slow realization that jumping on board with the 2016 VR revolution requires a tricked-out gaming rig you'd never previously have dreamed of stashing under your desk, or the blitz of hype surrounding Nvidia's latest 1000-series GPUs, there's more reason to get excited about PC gaming hardware than there has been in years. But what is a graphics card? Do you really need one, and which one do you need?

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