Before NVIDIA made any official announcement, the gaming community found what the company had been quietly building: the first real-world implementation of DLSS 4.5 Ray Reconstruction, hidden inside the Modern Warfare 4 Beta files. It is a small but telling moment in the ongoing story of how technology reaches the public — not through press releases, but through curious hands and open file directories. The discovery, made just days after the beta launched on August 21st, suggests that the gap between what engineers finish and what the world receives is narrower than it appears.
Modern Warfare 4 Beta reveals new DLSS 4.5 Ray Reconstruction ahead of official launch
The first real-world look at what NVIDIA's engineers have been working on
Mark
Why does it matter that this showed up in a beta before an official announcement?
Mimi
Because it's the first time anyone outside NVIDIA has actually seen this technology working in a real game. NVIDIA promised it was coming, but seeing is believing—and now the community can test whether the improvements are real.
Mark
What's the practical difference between the old Ray Reconstruction and this new one?
Mimi
The new model has more parameters and more computing power, but the visible difference is cleaner images. Less ghosting, less flickering, sharper motion. It's the kind of thing you notice when you're looking at a fast-moving scene or reflections in water.
Mark
Why do people need to use third-party tools instead of just updating through NVIDIA's app?
Mimi
The NVIDIA app doesn't recognize these beta DLL files yet, so it won't let you select them as an option. The workaround tools let you manually swap the files and point the game to use them instead.
Mark
How many games can actually use this right now?
Mimi
Only the ones where people have manually swapped the files—Alan Wake 2, Cyberpunk 2077, a few others. It's not officially supported yet. Once NVIDIA releases it properly, developers will integrate it into their games the normal way.
Mark
When will that happen?
Mimi
Probably within days. The files are dated June, so they've been ready for a while. Gamescom is coming up, and that's where NVIDIA usually makes these announcements.
Le Pouls
- A Reddit user spotted DLSS 4.5 Ray Reconstruction buried in Modern Warfare 4 Beta files before NVIDIA had named a single game that would carry it.
- The new build — version 310.7.128 — cannot simply be dropped in; players must navigate third-party tools, manual DLL swaps, and debug overlays just to run it.
- Early testers across Alan Wake 2, Cyberpunk 2077, and other titles are already reporting measurable reductions in ghosting, temporal flickering, and motion blur artifacts.
- The technology behind the upgrade is substantial: a second-generation transformer model with 20% more parameters and 35% more compute power, delivered without a performance cost.
- A June 12 date stamp on the discovered files reveals NVIDIA has held this build for months, with Gamescom now the most likely stage for the formal unveiling.
Before NVIDIA made any official announcement, the gaming community found what the company had been quietly building: the first real-world implementation of DLSS 4.5 Ray Reconstruction, hidden inside the Modern Warfare 4 Beta files. It is a small but telling moment in the ongoing story of how technology reaches the public — not through press releases, but through curious hands and open file directories. The discovery, made just days after the beta launched on August 21st, suggests that the gap between what engineers finish and what the world receives is narrower than it appears.
When the Modern Warfare 4 Beta opened for early access on August 21st, it carried more than a new Call of Duty title — it carried a secret. Within days, a sharp-eyed Reddit user found the first working implementation of DLSS 4.5 Ray Reconstruction embedded in the game's files, alongside a new DLSS build the public had never seen.
NVIDIA had promised the upgrade would arrive this month but had not named a launch title. Modern Warfare 4 answered that question quietly, through its beta files rather than a press release. The new build, version 310.7.128, includes the Ray Reconstruction upgrade NVIDIA's engineers have been developing — and it was already sitting in the wild, waiting to be found.
Accessing it requires effort. The standard NVIDIA app won't recognize manually swapped DLL files, so early adopters turned to tools like Profile Inspector and DLSS Swapper, extracting the core file from the new build and configuring it to run Preset F. A debug overlay through DLSSTweaks confirms whether the upgrade is actually active.
Those who made it through the process tested the new model across Alan Wake 2, Cyberpunk 2077, Crimson Desert, and Hogwarts Legacy. The results were consistent: less ghosting, reduced temporal flickering, and sharper detail in motion. The gains come from a second-generation transformer model carrying 20% more parameters and 35% more compute capability — without any added performance cost.
The DLL files carry a June 12 date stamp, meaning NVIDIA has held this build for months. With Gamescom approaching and August nearly gone, an official announcement appears imminent — and for GPU owners, the wait is nearly over.
The Modern Warfare 4 Beta went live for early access on August 21st, and within days, a sharp-eyed Reddit user uncovered something NVIDIA hadn't yet announced to the public: the first working implementation of DLSS 4.5 Ray Reconstruction embedded in the game's files, along with a new DLSS build that's already being tested in the wild.
NVIDIA had promised DLSS 4.5 Ray Reconstruction would arrive sometime this month, but the company hadn't named a game that would ship with it first. Modern Warfare 4 changed that. Buried in the beta files was version 310.7.128 of DLSS—a fresh build that includes the long-awaited Ray Reconstruction upgrade. The discovery matters because it gives the gaming community its first real-world look at what NVIDIA's engineers have been working on, before the official release hits.
Getting hands-on with the new version requires some technical legwork. The standard NVIDIA app won't recognize the new DLL files if you simply swap them in, so players have turned to third-party tools like Profile Inspector and DLSS Swapper to manually replace the old files with the new ones. The process involves backing up your original game files, extracting the nvngx_dlssd.dll from the 310.7.128 build, and then configuring the Ray Reconstruction preset to use Preset F, which is what the newer model expects. Once applied, NVIDIA's DLSS debug overlay—available through DLSSTweaks—confirms whether the upgrade is actually running.
Early adopters have already reported success testing the new model across multiple titles: Alan Wake 2, Cyberpunk 2077, Crimson Desert, and Hogwarts Legacy. What they're seeing is measurably different from the previous generation. NVIDIA designed DLSS 4.5 Ray Reconstruction around a second-generation transformer model that packs 20 percent more parameters and 35 percent more compute power than its predecessor, yet manages to maintain the same performance profile. The real gains show up in image quality: less ghosting, reduced temporal flickering, and sharper detail preservation during motion. The improvements vary depending on the game and graphics settings, but the pattern is consistent across the board.
The timing suggests an imminent official announcement. The DLL files discovered in the beta carry a June 12 date stamp, which means they've been sitting in NVIDIA's pipeline for months. With August winding down and Gamescom—the industry's biggest gaming conference—just around the corner, the smart money is on a formal unveiling within the next week. That's when NVIDIA typically makes its splashiest graphics announcements, and when developers get the green light to start integrating new technology into their pipelines. For gamers and GPU owners, it means the wait is nearly over.
Citations marquantes
The new version uses a second-generation transformer model with 20% more parameters and 35% more compute capability while maintaining performance similar to the previous model— NVIDIA (via announcement)
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