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It does so by keeping a monitor’s refresh rate in sync with the video input from your computer. Our guide to FreeSync and G-Sync provides more detail. Many 4K monitors support HDR, but often the ...

While these cables come in different lengths and materials, the truth is you don’t need to overspend if your goal is to get 4K resolution at 120Hz. All but one of our picks support at least the ...

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