You have that big, shiny 4K TV. You’re planning on getting the PS4 Pro so you can take advantage of the 4K tech with video games. But do you have all of the cables needed to do so" The PS4 Pro will use your standard HDMI cable that you likely already have, but in order to use the 4K settings, you will need some new equipment.
The PS4 Pro has settings for both 2160p YUV420 and 2160p RGB (the latter is highly recommended by Sony if your 4K TV supports it). But if you want that sweet, sweet 60 frames-per-second with these higher resolutions, you will need a Premium HDMI cable, also known as HDMI 2.0. Sony explained exactly why this cable is needed on their blog.

For maximum quality, you?ll need a PS4 Pro system, a 4K TV with a Premium HDMI input port (often marked in blue), and a Premium HDMI cable. A Premium HDMI cable is included with PS4 Pro, but those who need to purchase a longer cable should remember to get one that meets the Premium HDMI spec. The newer Premium HDMI format can display a 4K signal at up to 60 frames per second (60Hz). Older High Speed HDMI cables (aka HDMI 1.4) can technically display a 4K signal on a 4K TV, but the performance will be limited to just 30 frames per second (30Hz).

Fortunately, one will be included with the PS4 Pro. Be doubly careful which HDMI cable you use to connect the PS4 Pro to your 4K TV. Since the PS4 Pro will work with regular HDTVs and the regular HDMI cable.
[Source: PlayStation Blog]
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