NVIDIA DLSS 4.5 Ray Reconstruction Available Now

Building upon the major advancements introduced with NVIDIA DLSS 4.5, including a 2nd generation Super Resolution transformer model, Dynamic Multi Frame Generation, 6X Multi Frame Generation, and an enhanced Frame Generation model, we’re excited to announce that DLSS 4.5 Ray Reconstruction is available now, adding a new 2nd generation transformer model, delivering superior image quality in ray-traced and path-traced games.

DLSS Ray Reconstruction is a neural rendering technique for all GeForce RTX GPUs that improves image quality in ray-traced and path-traced games. Replacing traditional hand-tuned denoisers, it uses an NVIDIA supercomputer-trained AI network to generate higher-quality pixels in the parts of a ray traced frame where rays were not sampled. The model is unified with DLSS Super Resolution, intelligently analyzing temporal and spatial engine data to reconstruct sharper, more stable, and higher-fidelity high-resolution images.

DLSS 4.5 Ray Reconstruction features a new 2nd generation transformer model to deliver even better image quality in ray-traced and path-traced games. It is available now via a new NVIDIA app update, introducing several major improvements:

• Efficient Denoiser: The new model delivers 35% more compute capability, and processes 20% more parameters, while maintaining similar performance to the previous model
• Enhanced Super Resolution: Building upon the advances from DLSS 4.5 Super Resolution, the model has deeper spatial awareness across every scene, and more intelligently uses game engine pixel sampling and motion data. The result is improved lighting accuracy, better temporal stability and clearer motion in ray-traced and path-traced content
• Expanded Training Dataset: Trained on a larger dataset, the new model is even better at image reconstruction. This intelligence gives the model even better awareness to pick the most accurate engine data to reconstruct scenes closer to ground truth
• Finer Developer Control: The new model provides developers with finer control for temporal accumulation, providing precise tuning of model response for even better image quality

To upgrade your system with DLSS 4.5 Ray Reconstruction, go to Settings > About in the NVIDIA app and opt in to Early Access releases (an official release will follow in September).

Once installed:

• Open the “Graphics” section and select a supported game (alternatively, select “Global Settings” at the top of the window and apply the updated Ray Reconstruction to every supported game in your library)
• Scroll to “Driver Settings”
• Click “DLSS Override - Model Presets”
• Click “Custom”
• Open the “Ray Reconstruction” drop-down and choose “Recommended” or “Preset F”
• Click “Apply”

Our new NVIDIA app update also adds per-game controls for Resizable BAR in Driver Settings for all games and apps, G-SYNC Pulsar settings in System > Display > G-SYNC Pulsar, Borderless Windowed mode support for Optimal Playable Settings, and a few other user-requested quality of life tweaks that are detailed in full in the release notes.