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Reasons why 8K monitors are not reaching PC gaming

One of the advantages of having more and more resolution is not only a more crystalline image, but also that certain elements gain in definition, especially those that are far from the view of the player in a 3D video game and that are translated into annoying artifacts. graphics. The highest resolution that has been reached to date in commercial displays is 8K, but it is a resolution little used in the PC world. What is the reason for this?

The 8K problem in gaming

Compared to video content, where each frame has already been calculated and only needs to be decompressed, in video games each frame that our eyes see does not previously exist and must be generated from scratch.

In the 3D pipeline there are two differentiated parts where the second one depends on the number of pixels on the screen and therefore the heaviest part for the GPU. All this involves a large number of calculation units and memory that grows with the number of pixels that have to be displayed on the screen, which makes rendering at 8K is an impossible task even for the most advanced GPUs.

At present we have seen how all manufacturers are adding hardware in their GPUs to accelerate the algorithms via deep learning that allow a GPU to predict the same image at a greater number of pixels with fewer pixels. This has been due to the fact that launching a Gaming GPU with 4K capacity and with acceptable manufacturing costs is impossible, since these have begun to grow due to the need for both internal and external bandwidth, as well as the complexity of the GPU itself.

Where do we want to go? Building the 8K gaming GPU is impossible for now. In the future it is possible that with MCM GPUs based on chiplets this possibility will open, but we doubt that it will be possible without deep learning super-resolution algorithms such as the NVIDIA DLSS or XeSS from Intel.

8K monitors need a lot of space

DisplayPort 2.0

Currently if you want to play with a resolution of 8K, apart from that you can only do it with very old games and graphics cards that support an HDMI output. What’s more, if you use version 2.0 of the video output standard you will find yourself limited to 30 FPS so you should opt for a gaming GPU with HDMI 2.1 output. Of course, we cannot forget that we have to make sure that the monitor supports a resolution of 8K.

And such 8K monitors exist, but here we find the problem of viewing distance, and that is that our eyes are not perfect and the point is reached where a greater number of pixels in an area is not an advantage for our quality of image. For example, a 32-inch monitor with 8K resolution achieves the highest visual definition from 30 centimeters, if we are going to more modest and usual sizes such as 24 inches then the thing is reduced to 23 cm.

To understand this problem we must bear in mind that the ideal position between the monitor and the user is 51 cm. So unless we use a monitor larger than 30 inches, we will not be able to appreciate the advantages of an 8K monitor for PC. Therefore, the number of users that can use it is at least limited because not all have the same space.

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