NVIDIA is giving ray tracing another AI-powered upgrade with DLSS 4.5 Ray Reconstruction, and this time the focus is less about generating more frames and more about making the frames themselves look cleaner.
Ray tracing and especially path tracing can produce some seriously impressive lighting, but there is still a fundamental problem: GPUs simply cannot fire enough rays for every pixel in real time. Games therefore rely on denoisers to fill in the missing information, which can sometimes result in smearing, ghosting, unstable reflections, and lost fine details.
That is where Ray Reconstruction comes in. Instead of relying on traditional hand-tuned denoisers, NVIDIA uses an AI model trained on its supercomputers to reconstruct higher-quality pixels from the limited ray samples available. DLSS 4.5 Ray Reconstruction takes this further with a second-generation Transformer model designed specifically for ray-traced and path-traced scenes.
The new model processes 20% more parameters while delivering around 35% more computational capability than the previous generation, without requiring a major increase in performance overhead. The goal is to better preserve details in areas such as reflections, shadows, textures, and fine geometry, particularly when the camera or objects are moving.
Perhaps Team Green has listened and is not gatekeeping this update to the RTX 50 series cards, as all “RTX” GPUs can run it – 20, 30, 40, 50 – all of them, and NVIDIA will be rolling it out through the NVIDIA app for supported games.
The difference should be especially noticeable in games that push ray tracing to the extreme. Titles such as Cyberpunk 2077 and Alan Wake 2 can produce much cleaner reflections and lighting with the newer model, while upcoming games such as 007 First Light are also being built around NVIDIA’s latest ray-tracing technologies.
Well, here’s the list of the games announced at Gamescom 2026 that will come with DLSS 4.5:
- AION 2
- ANANTA
- Aniimo
- Beautiful Light
- Black State
- CINDER CITY
- Fragmentary Order
- Silver Palace
Interestingly, NVIDIA isn’t stopping at games either. DLSS 4.5 Ray Reconstruction is also coming to Blender, where it will be integrated into Cycles as a denoiser. The idea is to let artists work with a much closer-to-final lighting result in real time instead of waiting for a heavily sampled render to finish. NVIDIA says the integration is planned for Blender 5.3 this fall.
So while DLSS 4.5 is often associated with things like Dynamic Multi Frame Generation and higher FPS, Ray Reconstruction is arguably the more important upgrade for anyone running ray tracing or path tracing. It tackles one of the biggest visual weaknesses of real-time ray tracing – the fact that there simply aren’t enough rays being calculated per frame.
It doesn’t magically make path tracing a solved problem, and early testing still shows situations where artifacts can remain. But with the second-generation Transformer model, NVIDIA is getting much closer to making heavily ray-traced games look consistently clean without simply throwing more GPU power at the problem.
