Almost all Intel consumer processors are equipped with integrated graphics, but many systems, especially desktop ones, nevertheless rely on discrete graphics cards, and the “insert” is not used in them. Therefore, Intel decided to conduct a study in which cases you can use bundles from the integrated and discrete graphics processors.
As an example of how integrated and discrete graphics work together, Intel used Direct3D 12 to physically simulate a dynamic system consisting of 4 million particles in this case. It is interesting that the company does not make any comparisons and does not show the benefits of using bundles instead of individual GPUs, but only shows in which cases such bundles can be used.
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In the simulations performed, work on calculations (with computational shaders) was given to the integrated graphics processor, while only graphics processing fell on a discrete graphics card. According to Intel, different GPUs can be effective in asynchronous loads, for example, when working with artificial intelligence, modeling particles and shadows, physics calculations, etc.
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Finally, embedded graphics can help discrete in a traditional task such as rendering. For example, one frame can be processed by one GPU and the other by another. But for the effectiveness of this method, discrete graphics should not be much more productive than built-in, otherwise there will be too much difference in the processing speed of frames. But within thin laptops, for example, this approach can be very useful.
https://www.youtube.com/watch?v=MG0QyqJ3Nuc
Interestingly, Intel has demonstrated the ability to work together a wide variety of graphics processors. In one case, it was a bunch of Intel HD 530 and AMD Radeon RX 480, in the other – Intel UHD 630 and AMD Radeon RX 560, and in the third the same Intel UHD 630 worked in conjunction with the NVIDIA GeForce RTX 2080 Ti.
In the end, I would like to remind you that back in 2011, AMD introduced Dual Graphics technology, which also offered the integrated graphics of its first Llano APUs and discrete Radeon HD graphics cards. However, as you can see, the technology has not taken root. Maybe Intel is more lucky.
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