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?

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23 Feb 2017 Array ( [id] => 244 [title] => NEW: spo-book KUMO IV - High-End Mini-PC with nVidia GTX 1060 [authorId] => [active] => 1 [shortDescription] => 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. [description] =>

Industrial PC for Virtual Reality and Digital Signage

Like its predecessors, the spo-book KUMO IV is attractive due to its innovative and unique combination of a robust, compact metal housing and an extremely powerful, high-end graphics card. The latter is from nVidia's current Pascal generation, goes by the name GTX 1060 and is equipped with 6 GB DDR5 video RAM. An Intel Core i5-6400T Desktop CPU (Skylake) with four cores and a frequency of 2.2 (max. 2.8) gigahertz also delivers impressive performance. Whether it is high-resolution digital signage applications or sophisticated virtual reality solutions – the spo-book KUMO IV is capable of (almost) everything.

Four-fold 4K@60Hz

Thanks to 2-fold DisplayPort 1.3 and 2-fold HDMI 2.0b, the Mini-PC is able to simultaneously display 4K content with a picture frequency of 60 hertz on four screens. And if 4K is not enough, the spo-book KUMO IV even displays 8K@60Hz, a resolution of a fabulous 7680 x 4320 pixels. It is supported by up to 32 GB DDR 4 RAM. This exceptional performance is housed in a compact case with the dimensions 200 x 205 x 80 mm. From the end of march the Mini-PC will be available in the desired configuration.

##Order a spo-book KUMO IV or request a test sample

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products
NEW: spo-book 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 Array ( [id] => 332 [title] => NEW: spo-book RUGGED GTX 1050 Ti – Outdoor Digital Signage and Vehicle Computing [authorId] => [active] => 1 [shortDescription] => We’ve just released our new spo-book 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. [description] =>

RUGGED and Digital Signage? GTX 1050 Ti makes 8K possible!

We don’t want to beat around the bush and directly explain you the main feature that the spo-book RUGGED GTX 1050 Ti has to offer: The namesake dedicated nVidia GTX 1050 Ti graphics card. One or another could already be familiar with this name, because our spo-book KUMO IV has a similar graphics card obscured.
But what’s so special about the GTX 1050 Ti? With a memory of 4GB and a video RAM that goes up to 32GB content can be played without any judder – even in a resolution of 8K. Sounds good so far. Four of the seven HDMI interfaces, which are placed on the front, make a 8K video wall possible.

High end graphics passively cooled

Our RUGGED GTX 1050 Ti stays loyal to the common theme of the RUGGED series. As well as its predecessor the Mini-PC is equipped with a sixth generation Intel® Core i5 CPU with a power of up to 4 x 2,3 GHz. With the passive cooling system and its massive metal housing, which we both know from the whole RUGGED series, using the Mini-PC for outdoor scenarios is absolutely no problem because dirt, dust or humidity can’t get inside the housing.  What speaks for outdoor usage also: The wide temperature range from -40° Celsius to +70° Celsius. In need of a 8K video wall in the ski area? No problem for our RUGGED GTX 1050 Ti.

NEW: RUGGED for Vehicle Computing

We already announced the compatibility of the “new” RUGGED series with the application in vehicles when we released the RUGGED Q170. The spo-book RUGGED GTX 1050 Ti can intercept voltage peaks, which usually occur when starting a motor. Special with this Mini-PC is that it doesn’t only have the wide-range input from 9-36 Volts but can also intercept 48 Volt. As well as its younger brother the new Vehicle-PC is vibration and shock tested according to American military standards.

Technical facts of the RUGGED GTX 1050 Ti

•    Intel® Core i5-6500TE Skylake 4 x 2,3 GHz, up to 3,3 GHz
•    Absolute highlight: nVidia GTX 1050 Ti with 4GB Memory
•    Measurements (W x H x D): 260 x 89 x 226,5 mm
•    2 x SIM Slot
•    7 x HDMI
•    4 x USB 3.0
•    4 x Intel Gigabit LAN (optional PoE)
•    optional:
-    W-LAN
-    Bluetooth

##Configure your spo-book RUGGED GTX 1050 Ti!

##See all of our RUGGED models

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products
NEW: spo-book RUGGED GTX 1050 Ti – Outdoor Digital Signage and Vehicle Computing
We’ve just released our new spo-book 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 Array ( [id] => 304 [title] => VGA, DisplayPort, HDMI, DVI – what’s the difference between these multimedia interfaces? [authorId] => [active] => 1 [shortDescription] => 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. [description] =>

The old hand: The analog VGA-interface

If we talked about an Indian tribe today the VGA interface would be our tribal leader. This interface is available on the market already since 1987 and although it’s slowly declining it’s still quite widespread.
VGA stands for Video Graphics Array and is a purely analog interface which changes analog signals into digital. Although this interface has been the standard for about 20 years it has many disadvantages. Originally the connector was designed for a maximum resolution of 640x480 px but nowadays even Full HD pictures can be played through modern calculation methods. Strong disturbance sources such as too long cables have strong negative effects on the picture quality, this is why the VGA interface was replaced by technically more complex interfaces over the years.

Benefit:

- Wide spread interface

Downsides:

- Maximum possible resolution 1920x1200 px

- Just analog, no digital signal transmission

- Sensitive to disturbing factors such as long cables

- Only transmission of images

 

First time digital: The DVI-interface

The successor of the VGA connector is the “Digital Video Interface”, shortly DVI. Using the DVI interface makes it possible for the first time to digitally exchange higher resolutions. This is possible thanks to the TMDS (”Transition-Minimized Differential Signaling”) standard, which eliminates electromagnetic interference that was usual for analog signals. Although the name of the connector doesn’t suggest it: with help of a DVI-A plug pure analog signals can be transmitted. If the standard DVI-D plug is applied, the signal is digital and the content can be displayed with a resolution up to 2560x1600 px and a frame rate of 100 Hz. Also the combination of analog and digital signals is possible with this interface: one needs a DVI-I plug for it. The amount of pins needed is higher, however the resolution remains congruent with the resolution of the DVI-D plug.

Benefits:

- Digital picture transfer

- Compatible with VGA and HDMI

Downsides:

- From todays view: “Only” up to two times 1920x1200 px transfer

- Like VGA: Only transmission of images

 

HDMI – Digital audio and image files up to 4K and 3D

The HDMI interface is the further development of the DVI connector and is surely the most well-known interface among the mentioned ones. HDMI, which stands for “High Definition Multimedia Interface” prevails especially in the home cinema and console field.
With help of just one HDMI cable digital image and audio files can be exchanged parallel between two devices. The HDMI 2.0 standard transfers up to 2160 signals at 60Hz for 4K-UHD materials and also supports a 1080 px resolutions with 48Hz for 3D materials (see also "What is the difference between Full HD, UHD and 4K?"). In its latest version the HDMI interface has three different plugs; the standard one is the HDMI type A. For applications with little space the type C or Mini-HDMI is suitable. For ultra-mobile applications with smallest space available the type D or micro-HDMI is perfect.

Benefits:

- “2 in 1”: Audio and image transmission

- Space saving

- Built-in copy protection (HDCP)

- Easy to plug in and out

Downside:

- Not as long-lasting as the DVI

 

The better HDMI? The DisplayPort

The DisplayPort interface is a license-free connector standard that’s able to transmit audio and image signals symmetrically just like the HDMI. The DisplayPort was standardized by the VESA (Video Electronics Standards Association) and was created to replace the VGA and DVI.  Just like DVI and HDMI the DisplayPort is also a digital interface, which is mostly used in the field of modern PC monitors and graphic cards. The data transmission process of the DisplayPort is better protected from the interface radiation, which makes a resolution up to 5K possible, which is 5120x2880 px at an image rate of 60 pps.

Benefits:

- License-free and therefor is less expensive in the end use

- Low susceptibility to failure due to transmission through micro bundles

- Possible cable length up to 15 meters

Downsides:

-Not known

##Explore all spo-comm Mini-PCs

Feel free to contact us, we will be happy to provide you with more detailed information!

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know-how
VGA, DisplayPort, HDMI, DVI – what’s the difference between these multimedia 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.