NVIDIA released DLSS 4.5, a free software update that replaces the previous Ray Reconstruction model with a second-generation Transformer AI engine. This change matters because it fixes visual glitches in path-traced games without slowing down your system. Gamers using supported graphics cards can now see sharper textures and fewer artifacts in demanding titles.
New AI model restores fine details in path-traced games
The core of this update is the new Ray Reconstruction Model F, which NVIDIA designed to handle complex lighting calculations more efficiently. It works by swapping out traditional denoising methods for the newer AI model. This shift allows the system to restore fine details in reflective surfaces and wet environments with greater accuracy.
- Ray Reconstruction Model: 2nd-Generation Transformer AI Model (Model F)
- Performance Overhead: None (Identical performance)
- GPU Compatibility: All NVIDIA GeForce RTX Series (RTX 20, 30, 40, and 50 Series)
- Primary Improvements: Enhanced texture clarity, reduced temporal boiling/ghosting, improved fine detail restoration
According to Notebookcheck, the update delivers enhanced texture clarity and reduces temporal boiling or ghosting effects. The company claims there is no performance overhead compared to the previous Ray Reconstruction model. This means players should see identical frame rates while enjoying improved image quality.
Testing on an Alienware 18 Area 51 equipped with an RTX 5090 Mobile chip shows playable performance in path-traced games. The laptop easily delivers over 60 frames per second at native QHD+ resolution using DLSS Quality Mode. Meanwhile, an Alienware Aurora 16X with an RTX 5060 achieves playable frame rates at 1200p with moderate settings.
DLSS 4.5 supports all NVIDIA GeForce RTX series, including the 20, 30, 40, and 50 Series. This broad compatibility ensures that owners of older and newer cards can benefit from the upgrade. We looked at the last DLSS 4.5 update earlier while tracking NVIDIA launches, and the current version builds on those stability themes.
The update is now available for compatible systems. Users can expect clearer path-traced visuals and stable performance across supported hardware.
Source: NotebookCheck




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