GoKawiilNvidia has been releasing major improvements to its DLSS suite of neural rendering tech throughout 2026. The first major update came at CES with DLSS 4.5 upscaling (or "Super Resolution"), which introduced a more advanced and more computationally intensive transformer AI architecture for better image quality at lower input resolutions. The second was DLSS 4.5 Multi Frame Generation, which introduced 5x and 6x multipliers along with a dynamic mode that shifts multipliers on the fly for the smoothest gameplay experience.
Now, at Computex 2026, Nvidia has revealed DLSS 4.5 Ray Reconstruction, its advanced denoiser for better ray-traced and path-traced image quality in games.
For a refresher, DLSS Ray Reconstruction replaces hand-tuned denoisers with a neural rendering model that both infers what pixels should look like in noisy areas where light rays weren't cast and upscales the resulting image to a higher-resolution output. The model uses temporal and spatial inputs from game engines to produce its sharp, stable, and high-fidelity output images.
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DLSS 4.5 Ray Reconstruction, coming in August, improves this set of techniques in three ways. Using an improved transformer architecture, it can process 35% more input data and uses 20% more parameters within the same compute budget as the previous-generation transformer architecture.
DLSS 4.5 Ray Reconstruction also inherits better spatial awareness and processing of input data from DLSS 4.5 Super Resolution, resulting in more accurate lighting, more stable images, and clearer motion. Nvidia says the mew model has also been trained on a larger data set to improve its utilization of game inputs and offers developers more control over its temporal accumulation behavior, both of which result in improved image quality.
Unlike DLSS 4.5 Super Resolution, which incurs substantial performance penalties on older hardware, DLSS 4.5 Ray Reconstruction will remain 100% compatible with every GeForce RTX GPU, including RTX 20-series and RTX 30-series products.
Nvidia touts a couple of scenarios where DLSS 4.5 Ray Reconstruction makes a big difference in image quality, and the improved performance of the model is indeed easily visible.
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