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Published: August 22, 2023 | Source: Nvidia | Author: Mark Campbell

Nvidia’s new DLSS 3.5 Ray Reconstruction tech is coming, and it works on all RTX GPUs

Nvidia's new DLSS 3.5 Ray Reconstruction tech is coming, and it works on all RTX GPUs

Nvidia’s DLSS family has grown, and DLSS 3.5’s new Ray Reconstruction feature works on all RTX GPUs

The DLSS family of game enhancement technologies continues to grow. With DLSS 3.5, Nvidia are adding DLSS Ray Reconstruction into the mix. At Gamescom 2023, Nvidia has revealed a new addition to DLSS that focuses on image quality and not performance, promising users enhanced ray tracing effects without a performance hit.
Instead of relying on traditional, hand crafted denoising techniques, Nvidia has created an AI-powered neural renderer that is designed to generate higher quality results without a performance hit. Nvidia used one of their supercomputers to train an AI network that can make smarter decisions using available ray tracing data, allowing Nvidia to generate more accurate ray tracing effects, higher quality reflections, and retain more high frequency information for upscaling.
With DLSS Ray Reconstruction (DLSS RR), Nvidia makes smarter use of the data that is already available to traditional denoising techniques. DLSS RR has the ability to recognise different ray tracing effects, allowing it to make clever use of both temporal and spatial data to retain high frequency details and generate higher quality effects. Instead of discarding or misusing data, DLSS RR uses its available data more effectively to deliver higher quality results. With DLSS RR, Nvidia’s working smarter, not harder.

RTX Ray Reconstruction works on all RTX GPUs

Unlike DLSS Frame Generation, Nvidia’s DLSS Ray Reconstruction technology works on all RTX graphics cards. This means that the benefits of DLSS RR can be enjoyed on RTX 20, RTX 30, and RTX 40 series graphics cards. This should help Nvidia to convince developers to adopt DLSS RR within their games, offering users of Nvidia graphics cards access to higher quality ray tracing effects.

Nvidia's new DLSS 3.5 Ray Reconstruction tech is coming, and it works on all RTX GPUs

Improved Image Quality for ray traced effects

With DLSS RR, Nvidia can deliver enhanced ray tracing results by using ray tracing data in a more clever way. This allows RTX graphics cards to deliver higher quality results than traditional denoising techniques. When combined with DLSS super resolution, this can result in much higher quality results, as more high frequency data is conserved for DLSS Super Resolution to utilise.

Nvidia's new DLSS 3.5 Ray Reconstruction tech is coming, and it works on all RTX GPUs

Boosted Performance? Yes, but quality is the focus of DLSS RR

While the focus of DLSS RR is to increase image quality, there are instances when DLSS RR can deliver a notable performance boost for gamers. This is because DLSS RR can replace multiple denoising hand-tuned techniques, giving DLSS RR a lower overall performance overhead. This difference in overhead will differ on a game-by-game basis. In some games it will deliver higher levels of image quality at a small performance cost while other games will see higher levels of image quality and a notable performance boost.

Below is an example what showcased the impact of DLSS Super Resolution, DLSS Frame Generation, and DLSS Ray Reconstruction in Cyberpunk 2077.

Nvidia's new DLSS 3.5 Ray Reconstruction tech is coming, and it works on all RTX GPUs

Coming this Fall

DLSS 3.5 will be coming to games this fall, with Alan Wake II being one of the first games to support the effect. An update to Portal with RTX will add support for DLSS RR in the near future.

While DLSS 3.5’s Ray Reconstruction feature only benefits games with ray tracing, rasterised games that feature DLSS 3.5 will benefit from the latest updates to DLSS Super Resolution and DLAA.

You can join the discussion on Nvidia’s DLSS 3.5 Ray Construction Technology on the OC3D Forums.

Nvidia's new DLSS 3.5 Ray Reconstruction tech is coming, and it works on all RTX GPUs

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