Nvidia DLSS 4.5 ray reconstruction improves image quality and temporal stability in supported games

Nvidia’s DLSS 4.5 ray reconstruction update introduces a second-generation transformer model that enhances image quality and temporal stability across supported titles. The update, which requires the Nvidia app to toggle via an override function, processes 20% more parameters and offers 35% more compute capability than the original ray reconstruction model. Testing across various titles, including Alan Wake 2, Cyberpunk 2077, and Pragmata, reveals sharper overall images, more defined ray-traced shadows, and improved lighting accuracy. The new model demonstrates better responsiveness for fine elements on screen, such as lasers and foliage, and reduces ghosting compared to the previous version. While not a complete solution for all visual artifacts, the update provides noticeable improvements in temporal stability for reflections and fine details. Performance testing on RTX 5090, 4090, 3090, and 2080 Ti GPUs indicates that the performance impact of the new preset is negligible, with some instances even showing minor performance improvements rather than the expected performance hit. The update is available for all GeForce RTX gamers.

The DLSS 4.5 ray reconstruction update utilizes a second-generation transformer model to improve image quality and temporal stability. Nvidia claims the new model processes 20% more parameters and provides 35% more compute capability than the original version.

Testing shows sharper images, more defined shadows, and improved lighting accuracy in titles like Alan Wake 2 and Cyberpunk 2077. The update improves the rendering of fine elements and reduces ghosting, though it does not eliminate all visual artifacts.

Performance testing across multiple RTX generations indicates that the new preset has a negligible impact on frame rates.