While we already knew that Microsoft's DirectX 12 will allow discrete and integrated GPUs to be combined in order to provide certain performance gain, Microsoft has now revealed more details regarding it during its Microsoft Build 2015 conference.

While showing the demo from Square Enix, called "Witch Chapter 0 [cry]" which was running on four Geforce GTX Titan X graphics card, with 63 million polygons per scene and massive 8K x 8K textures, discrete GPUs managed to get an average of 35.9 FPS. When the new DirectX 12 "Multiadapter" feature was enabled, the same system managed to use the integrated GPU, most likely from an Intel CPU, to get an average of 39.7 FPS, which is a significant performance gain.

While combining both the integrated and the discrete GPU isn't anything new, since AMD, LucidLogix and plenty of other have tried it, it was not done on a big scale, something that Microsoft DirectX 12 API will certainly be able to do.

We are quite sure that we will hear more details regarding the DirectX 12 Multiadapter feature soon and this could be quite important for AMD's APUs, which certainly pack a lot more power compared to Intel's integrated GPUs.

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Source: Wccftech.com.