Overview
- Nvidia has made DLSS 4.5 Ray Reconstruction publicly available through the Nvidia App override and updated the DLSS SDK so developers can integrate the feature natively.
- The feature uses a second‑generation Transformer Super Resolution model that unifies denoising and super‑resolution into a single AI pass to better reconstruct reflections, shadows, and occlusion.
- Nvidia says the model delivers improved ray‑traced fidelity while keeping real‑world performance similar to prior versions despite using roughly 35% more compute and 20% more parameters.
- DLSS 4.5 Ray Reconstruction is supported across GeForce RTX 20, 30, 40 and 50 Series cards and is already enabled via the App override in titles like Crimson Desert, Resident Evil Requiem, and Pragmata with additional native integrations planned for September.
- The update continues DLSS’s shift from CNN to Transformer models with larger training datasets, improved motion and pixel sampling, and new developer tuning controls that aim to reduce artifacts such as ghosting and shimmering.