Nice to know: What is the difference between 4K and 8K?

While dealing with the topic of PC monitors, TVs or other devices, that show pictures or play video content, it won’t take much time until the terms UHD or 4K are mentioned. By now even the 8K-resolution is a very important thing. In the following article we want to explain what stands behind these terms and in what exactly makes them different.

UHD, 4K and 8K – What is the connection?

Let’s talk about terminology first: UHD stands for Ultra High Definition. The “K” in 4K and 8K for the number thousand. Below in the text we explain you what this is all about.
The term UHD includes two different resolutions. One of them is UHD-1, the other UHD-2. The former one has a resolutions of 3840 × 2160 pixels and stands for what is in the common language known as 4K. In cinemas 4K has another resolution, in fact 4096 × 2160 pixels. These 4096 horizontal pixels stand for the term 4K – which means 4-thousand.

UHD-2 or 8K – Not only dreams of the future

8K has twice the amount of both horizontal and vertical pixels than 4K. That leads to the fourfold amount of pixels – overall 33 million – and corresponds to a resolution of 7680 × 4320 pixels.
But not only does the resolution increase: The color range (WCG, Wider Color Gamut) and the contrast range (HDR, Higher Dynamic Range) extend, as well as the image repeat rate that goes up to a maximum of 120fps.

HDMI 2.1 – From 4K over 8K up to a resolution of 10K

Due to the data rate of 24 Gbit/s 8K needs a special cable that suits this requirement. In January 2017 the HDMI forum released the final specifications for a fitting cable. It is the successor of HDMI 2.0, which is simply called HDMI 2.1. With the support of a 48 Gbit/s data rate this cable makes 8K@60Hz possible and even exceeds the DisplayPort-standard that allows a data rate of 32 Gbit/s in its version 1.3 (see also “VGA, DisplayPort, HDMI, DVI – what’s the difference between these multimedia interfaces?”). By compressing the HDMI 2.1 cable even a resolution of 10.328 × 7.760, that’s 10K, is possible.

8K with Mini-PCs from spo-comm

At the moment we have two Mini-PCs in our product range that are able to play 8K content. One of them is our well-known Digital Signage player: The spo-book KUMO IV. This active cooled Mini-PC can play content in an 8K resolution due to its dedicated nVidia GTX 1060 graphics card with a VRAM of 6GB DDR5. The second Mini-PC is even the latest in our product range – the spo-book RUGGED GTX 1050 Ti. The system is equipped with a dedicated graphics card, too, and has furthermore a passive cooling system. As the PCs name suggests, the graphics card is an nVidia GTX 1050 Ti with a memory of 4GB and a VRAM up to 32GB high. At the same time four out of seven HDMI connectors make an 8K videowall possible.

That sounds interesting?

##Configure your spo-book KUMO V and test it for free!

##Configure your spo-book RUGGED GTX1050 Ti and test it for free!

More on this topic

23 Feb 2017 products

NEW: KUMO IV - high end Mini-PC with nVidia GTX 1060

At the ISE 2017 in Amsterdam, spo-comm has already presented its new high-end Mini-PC, the spo-book KUMO IV, and demonstrated its VR capability live. The dedicated nVidia graphics card, the compact enclosure and the barely audible fans were immediately of interest and showed that the market is ripe for an industrial PC of the extra class.
14 Jun 2018 products

NEW: RUGGED GTX 1050Ti – outdoor DS & vehicle computing

We’ve just released our new RUGGED Q170 for the Vehicle application and outdoor scenarios and now we already come up with another new Mini-PC that’s even from the same series. The beauty is called spo-book RUGGED GTX 1050 Ti. Experts may guess what stands behind this Mini-PC just by reading its name: A super performant, robust PC with the High-End nVidia GTX 1050 Ti graphics card. This already can make digital signage fans’ and customers’ hearts skip a beat. And justifiably so. The combination of the well-known RUGGED characteristics and this graphics card let this Mini-PC surpass everything we had to offer the digital signage field so far.
15 Dec 2017 know-how

VGA, DisplayPort, HDMI, DVI - differences of the interfaces

There are so many options on how to play various content from a mini-pc on a display. Graphic cards provide a numerous amount of connection possibilities (outputs), which in turn face other inputs on the displays. Often that’s the reason for the cable chaos behind the monitors. In this article we will discuss which interfaces for transferring graphic contents are available, what the difference between them is, and which standards they meet.