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FAQs

Do 4K HDMI cables work? ›

When it comes to 4K technology, HDMI connections do make a difference. 4K has a much higher resolution, refresh rate and bandwidth than standard high-definition TVs and monitors. So, only 4K or 8K HDMI cables will work on a device that supports 4K.

If you want a 4K signal, you need to look for an HDMI cable that offers a “high speed HDMI” connection. That means that the cable is able to consistently handle a 4K signal. In order to actually experience 4K content, you need every step of the hardware chain to be rated to handle a 4K signal.

Both work well, but of the two, HDMI is the better choice. It's a single cable for both audio and video hook-up that delivers superior picture quality, surround-sound audio, 3D support, and more, verses multiple cables using component connections.

The HDMI 1.4 specification was released over 10 years ago and all HDMI cables are manufactured to at least that specification. HDMI 1.4 was developed to accommodate 4K content and provide enough bandwidth to handle 4K video at up to 24 frames per second.

The easiest way to figure out if an HDMI cable is 4K compatible is to check its speed rating or its maximum bandwidth. A cable rated at 18 Gbps maximum bandwidth is fast enough to give you 4K video. If your HDMI cable is labeled “high speed,” it should be able to pass a 4K signal at lengths of up to three meters.

However, it's important to note that if you're aiming for a resolution near 4K, it's best to limit the cable's length to 3 meters or 10 feet in order to maintain the best possible video quality. While there are HDMI cables available that exceed the 25 feet mark, be cautious when choosing longer cables.

Buy a high speed HDMI cable that supports at least HDMI 1.4, the first HDMI standard to support 4K signals. To get a 4K picture, all components must support 4K: the cable box or streaming service, the HDMI cable and the TV.

With the myths now debunked, it's time to know the truth. Can a very expensive HDMI cable show a better picture and sound quality than a cheaper one? The quick answer is no. An HDMI cable, regardless of the materials used, can either transmit a signal or not – there's no in-between.

Q1. Can You Get Sound Through HDMI? Yes, sound can be transmitted through HDMI cables. HDMI (High Definition Multimedia Interface) carries both audio and video signals, making it a convenient solution for connecting devices like Blu-ray players, gaming consoles, and computers to displays such as TVs and monitors.

An HDMI cable is just a conduit between your TV and media device, be it a DVD, Blu-ray, or 4K UHD Blu-ray player; media streamer; video game console; or PC. Different types of HDMI cables do exist, but their designations indicate how much data they can carry. (Spoiler: There's really no such thing as a 4K HDMI cable.)

Is displayport better than HDMI? ›

Significant differences include that a Displayport generally supports higher resolutions and refresh rates, making it ideal for gaming, graphic design, and multimedia production. Displayport also supports daisy-chaining, where multiple monitors can be connected in a chain, using a single Displayport output.

Your current HDMI cables probably won't be able to handle 4K120. You'll need to spend just a little extra on Ultra High Speed HDMI versions. One final important reminder: if you have a receiver or soundbar in your system, and the game console is connected to that, it too has to be HDMI 2.1 in order to pass 4K120.

With the myths now debunked, it's time to know the truth. Can a very expensive HDMI cable show a better picture and sound quality than a cheaper one? The quick answer is no. An HDMI cable, regardless of the materials used, can either transmit a signal or not – there's no in-between.

To view content in 4K Enhanced Format (18Gbps or above):

Use an Ultra High-Speed HDMI cable to connect the TV to an HDMI device that supports 4K.

4K vs 8K Basics

4K is known as HDMI 2.0, and the cables support video at resolutions up to 2150p (3840 X 2160), which comes out to roughly 8 million pixels in an image. 8K is known as HDMI 2.1, and the cables double those numbers to provide 4320p (7680 X 2160) which gets the pixel count all the way up to 33 million.