When it comes to TVs, 4K and Ultra HD (or UHD) are referring to the same resolution. Those TVs, along with Ultra HD Blu-ray, ...

Older shows and movies are usually edited in 1080p or 720p ... and plenty of them won't make any significant difference. If you want to start building a 4K collection—or you've already begun ...

4K resolution is now within reach of everyday PC users, promising a massive improvement to image quality, with four times the pixels of a 1080p display. A 4K monitor is useful not only in games ...

In this case, the XG275D-4K is, as the model name implies, a 4K resolution (3840x2160) gaming monitor. At its native ...

Many of these webcams support 1080p, some at 60 fps, and a few at 4K, which adds to the price tag. If you're perfecting your streaming set-up you might want that higher frame rate capability ...