Nvidia adds support for DirectX Raytracing to GTX video cards

Mar

19

2019

In April, Nvidia will provide support for Microsoft DXR on some GTX video cards with Pascal and Turing gpus. DXR stands for DirectX Raytracing and the driver update gives the older video cards basic support for raytracing effects.

Nvidia announced the arrival of DXR support during the tenth edition of the GPU Technology Conference. The driver that appears in April brings DXR support to the GTX 1060 6GB and more powerful cards with Pascal GPU, up to the Titan XP. In addition, the support comes to the recently announced GTX 1660 Ti and GTX 1660. These have Turing GPUs, but lack the RT cores for hardware support for Nvidia’s implementation for real-time ray tracing. Microsoft announced DirectX Raytracing for the DirectX 12 api last year .

Nvidia therefore emphasizes that DXR only brings basal raytracing effects with a relatively small number of light rays to the GTX cards. Complex light effects are probably not to be expected, but a simpler representation of, for example, shadows and reflections is. Support for the dlss or deep learning super sampling image enhancement technology does not bring the driver update either.

Nvidia explained that a GTX 1080 Ti with only fp32 cores takes considerably longer to render a raytracing frame with Metro Exodus than a Turing gpu that can also use int32 cores and that an RTX 2080 thanks to its RT and Tensor -cores this can be a lot faster. The question is, therefore, how DXR will perform on older video cards in practice.

Anyway, the game engines will support Unreal Engine and Unity DXR. The arrival of DXR support was already known about the Cryengine. Nvidia also adds raytracing support for the Vulkan – api to its video cards.

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In: A Technology & Gadgets Asked By: [23633 Red Star Level]

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