Nvidia was expected to bring DLSS 5 into the conversation, but the real Computex-era move is DLSS 4.5 Ray Reconstruction — an August update aimed at making ray-traced games look cleaner on all GeForce RTX GPUs, not just the newest cards.
The feature will arrive with 27 supported games listed at launch, according to Notebookcheck. Nvidia says the new model improves ray-traced and path-traced image quality with more accurate lighting, better temporal stability, reduced ghosting, and clearer motion. That makes this less of a pure frame-rate story and more of an image-quality story.
Nvidia describes DLSS 4.5 Ray Reconstruction as “Superior Ray-Traced Image Quality For All GeForce RTX Gamers - Coming This August.”
That “all” matters. This is not a new GPU gatekeeping feature. Nvidia says DLSS 4.5 Ray Reconstruction will support every GeForce RTX GPU, which puts owners of older RTX cards in the same software upgrade path as buyers of newer hardware. For separate Nvidia hardware context, MLXIO has also covered how Nvidia Bets Your Next PC Will Need RTX Spark Inside and how RTX Spark laptops fit into Nvidia’s broader PC ambitions.
Nvidia skipped the DLSS 5 reveal and upgraded ray tracing instead
The tension is simple: DLSS 5 was expected to appear, but Nvidia instead detailed a more targeted improvement inside the DLSS 4.5 stack.
That is not a minor distinction. Regular DLSS conversations often center on performance: render at a lower internal resolution, upscale, add frames where supported, and chase higher FPS. Ray Reconstruction attacks a different weak point. It focuses on the messy visual data produced by ray-traced and path-traced rendering.
Ray tracing in games does not sample every possible ray in every frame. That would be too expensive. So games rely on reconstruction and denoising to turn partial, noisy lighting information into a usable image. Traditional denoisers use hand-tuned methods. Nvidia’s pitch is that an AI model trained on Nvidia supercomputers can infer cleaner pixels in the parts of a ray-traced frame where rays were not sampled.
The before-and-after promise looks like this:
- Before: Ray-traced scenes can show ghosting, unstable lighting, noisy detail, and motion artifacts.
- After: Nvidia claims DLSS 4.5 Ray Reconstruction should deliver cleaner visuals, more accurate lighting, better temporal stability, and clearer motion.
- Caveat: The source material does not claim this will raise frame rates in the same way DLSS upscaling or frame generation can.
That makes DLSS 4.5 Ray Reconstruction a quality filter for the most demanding visual effects, not a magic performance switch.
The new transformer model is doing more work without a claimed performance hit
The core technical change is Nvidia’s second-generation transformer model for Ray Reconstruction.
Notebookcheck reports that Nvidia claims the updated model delivers 35 per cent more compute capability and processes 20 per cent more parameters, while maintaining performance levels similar to the previous model. That is the key engineering claim. Nvidia is saying the model can do more inference work on the image without meaningfully worsening the performance profile versus the prior version.
The updated model acts as both a denoiser and image reconstruction system. It uses spatial and temporal engine data, including game-engine pixel sampling and motion data as described in Nvidia’s material, to reconstruct a higher-quality image from incomplete ray-tracing information.
Nvidia also says the model was trained on a significantly expanded dataset. The stated goal is to help it identify and use the most accurate game-engine data, bringing reconstructed scenes closer to their intended appearance. Developers also get finer control over temporal accumulation, which should let them tune how the model responds in specific visual scenarios.
This is where implementation will matter. A better model gives developers a stronger tool, but the result still depends on the game, the scene, the quality of the ray-tracing implementation, and how the developer integrates the feature.
The first 27 DLSS 4.5 Ray Reconstruction games are already named
Nvidia lists 27 games for DLSS 4.5 Ray Reconstruction support at launch. The list spans existing RTX showcases, unreleased titles, and games receiving broader DLSS 4.5 support.
| DLSS 4.5 Ray Reconstruction supported games | ||
|---|---|---|
| Alan Wake 2 | Enlisted | Neverness to Everness |
| Avatar Frontiers of Pandora | Everspace 2 | Portal with RTX |
| Backrooms: Escape Together | F1 25 | Pragmata |
| Call of Duty: Black Ops 7 | FBC: Firebreak | Resident Evil Requiem |
| Crimson Desert | Half-Life 2 with RTX | Samson |
| Cyberpunk 2077 | Hogwarts Legacy | Star Wars Outlaws |
| Death Relives | Incursion Red River | Subliminal |
| Directive 8020 | Indiana Jones and the Great Circle | Sword of Justice |
| DOOM: The Dark Ages | Naraka: Bladepoint | The First Descendant |
The practical checklist is straightforward:
- GPU: You need a GeForce RTX GPU, since Nvidia says the feature applies across RTX cards.
- Software path: Nvidia says the feature will be available through the Nvidia app in August.
- Game support: You need a supported game build with DLSS 4.5 Ray Reconstruction integrated.
- Settings: In ray-traced games, players should compare native ray tracing, DLSS Super Resolution with Ray Reconstruction, and different quality modes rather than assuming one preset wins everywhere.
Nvidia also says Blender 5.3 will add DLSS 4.5 Ray Reconstruction later this year as a viewport denoiser. That expands the feature beyond games, though the August gaming rollout is the immediate focus.
Alan Wake 2 shows the kind of artifact Nvidia wants to erase
Nvidia’s examples are more useful than the headline claims because they show what the model is supposed to fix.
In Indiana Jones and the Great Circle, Nvidia says the new model reduces snow ghosting and produces cleaner particle effects. In Pragmata, it points to more responsive lighting effects and fewer visual artifacts. In Alan Wake 2, Nvidia highlights improved stability and clarity in scenes featuring CRT static.
That last example is a good test case. CRT static is difficult because it contains fine, rapidly changing visual noise. A weak reconstruction model can smear it, blur it, or make it shimmer in motion. Nvidia says DLSS 4.5 Ray Reconstruction preserves the fine individual lines of static white noise with greater clarity and stability.
For players, the best test will not be a still screenshot. It will be motion. Toggle the feature in a supported scene and look for:
- Ghosting: Trails behind moving particles, snow, lights, or objects.
- Stability: Whether fine details crawl, shimmer, or settle down.
- Lighting response: Whether bright effects update cleanly as they move or turn off.
- Clarity: Whether reconstruction sharpens detail or over-smooths it.
The key point: if DLSS 4.5 Ray Reconstruction works as claimed, the most visible gains should appear in hard ray-traced scenes, not in simple rasterized ones.
RTX owners should test it, not blindly trust the preset
The best practical advice is to treat DLSS 4.5 Ray Reconstruction as a per-game setting.
Older RTX owners may use it alongside DLSS upscaling to make ray tracing more tolerable visually. Newer RTX owners may use it to push higher-quality ray-traced or path-traced settings while keeping image stability under control. But Nvidia’s own framing is about image reconstruction, not a universal FPS boost.
A sensible test routine in August:
- Update through the Nvidia app when the feature arrives.
- Open one of the 27 supported games.
- Pick a known ray-traced scene with moving effects, particles, or difficult lighting.
- Toggle Ray Reconstruction on and off.
- Check motion clarity, not just screenshot sharpness.
The trade-offs to watch are familiar for temporal reconstruction: unusual softness, over-smoothed detail, lingering artifacts, or game-specific issues after updates. Nvidia’s new model may reduce ghosting and improve stability, but each game will still expose different edge cases.
The forward watch item is the gap between Nvidia’s model-level claims and real-game integrations. If 35 per cent more compute capability and 20 per cent more parameters translate cleanly across the launch list, DLSS 4.5 Ray Reconstruction could become one of the more important RTX image-quality upgrades. If the gains cluster around a few showcase scenes, players will need to judge it title by title.
Key Takeaways
- DLSS 4.5 Ray Reconstruction gives all GeForce RTX owners a visual upgrade without requiring a new GPU.
- The update targets cleaner ray-traced and path-traced visuals rather than simply boosting frame rates.
- Launch support across 27 games gives the feature immediate relevance for RTX gamers.
