Display Resolutions for Today and Tomorrow

Resolution Comparison

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4K, 5K, 8K, 10K?

In talking about our 8K UHD HDMI Active Optical Cables, we’ve had many questions and conversations about display resolution. The internet, as we’re sure you’ve noticed, has very strong opinions on this topic. Just Google “8K content.”

We’re not here to discuss current 8K content (there’s not a lot yet, but it’s coming), and we’re also not going to get into the (fascinating) discussion of the human eye’s resolution capabilities. (576 megapixels? Or is it?)

What we do want to do is break down the resolutions specifically covered by our 8K UHD HDMI Active Optical Cables, and why we bring them up.



Pixel Dimensions: 3840 x 2160 = 8,294,400 pixels

Compared to HD: (1920 x 1080, or 2,073,600 pixels) = 4 times the pixels

At this point, 4K almost seems like old news. 4K TV prices dropped dramatically in 2015, making 4K the new normal. The trouble with 4K has been delivering an uncompromised, uncompressed signal.

Providing Ultra High Definition 4K signal transmission is the most important feature of our 8K UHD HDMI Active Optical Cables– for today’s installations. 48 Gbps is no problem whatsoever for these cables. They also provide High Dynamic Range and Wide Color Gamut. All the capabilities you need for excellent picture quality are present and ready to go.



Pixel Dimensions: 5120 x 2880 = 14,745,600‬ pixels *

*5K is more commonly listed at 5120 x 2880 pixels for monitors. Also listed as 5120 x 2160

Compared to HD: 7.1 x the pixels

What even is 5K? 5K is a wider screen resolution. This is a resolution that’s more commonly seen for monitors (especially those by Apple and LG), and it’s more applicable to gaming systems. Will we see high volumes of video content specifically for 5K? Doubtful. The next video jump will be to 8K.



Pixel Dimensions: 7680 x 4320 = 33,177,600 pixels

Compared to HD: 16 times the pixels

Compared to 4K: 4 times the pixels

8K will be the next stop for general video content. There is currently very limited content for 8K available, and displays are available at a premium cost. This is where we all were with 4K circa 2014 and earlier. It’s the same transition process. In the next few years, 8K displays will probably be at a consumer-accessible price point, which will hasten wider adoption of this format. Already, the now-delayed 2020 Tokyo Olympics will be broadcast in 8K. This is a resolution to be prepared for, which is why our 8K UHD HDMI Active Optical Cables have all the capabilities necessary for 8K Ultra High Definition transmission.



Pixel Dimensions: 10240 x 4320 = 44,236,800 pixels

Compared to HD: 21.3 times the pixels

Compared to 4K: 5.33 times the pixels

Like 5K, 10K is a wider resolution. It’s the same height as 8K. LG displayed a 10K interactive video wall in 2019.

Again, just as 5K is to 4K, this looks to be a display resolution mainly seen only in monitors and gaming systems. We probably won’t see too much video shot specifically in 10K resolution.

Why These Resolutions?

Specifically, all the resolutions mentioned before are covered in the new HDMI 2.1 Specification. The industry is, as a whole, getting ready to support higher display resolutions. While there is as yet still no official HDMI 2.1 certification, we are ready to support the upcoming increase in display requirements and deliver the full picture.

Display Resolutions for Today and Tomorrow