If a game looks blurry or shimmery with DLSS enabled, first identify which DLSS feature is active, then compare one setting at a time in the same scene. Super Resolution, DLAA, Frame Generation, and Ray Reconstruction do different jobs; the symptom alone does not identify its cause.
First identify which DLSS feature is active
“DLSS” is a suite of features, not one universal image-processing switch. NVIDIA describes Super Resolution this way: “DLSS Super Resolution boosts performance by using AI to output higher-resolution frames from a lower-resolution input.” It reconstructs an output using multiple lower-resolution images, motion data, and information from prior frames. NVIDIA’s DLSS developer overview describes the feature set.
- Super Resolution upscales a lower-resolution input to the game’s output resolution. Its mode changes the scaling choice and can affect both image detail and performance.
- DLAA uses Super Resolution technology for AI anti-aliasing at native resolution. It is a quality comparison, not a lower-resolution upscaling mode.
- Frame Generation creates additional frames. It is separate from Super Resolution and does not perform the same reconstruction job.
- Ray Reconstruction is intended for ray-traced or path-traced scenes, replacing conventional hand-tuned denoisers with a learned reconstruction network.
Start with the feature name shown in the game’s graphics menu. A complaint about fine detail in a still image points to a different comparison than a complaint about motion, and a problem visible only in ray-traced effects warrants checking Ray Reconstruction separately.
Compare settings without changing several variables at once
There is no universally best DLSS mode for every game, output resolution, or GPU. To make a useful comparison, hold the scene, camera angle, output resolution, and other graphics settings steady, and change one DLSS setting at a time.
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- Record the baseline. Note the game, GPU, display/output resolution, active DLSS feature and mode, ray-tracing status, and whether the blur or shimmer appears in a still scene, during movement, or only in particular effects.
- Compare Super Resolution modes. If the game offers Quality, Balanced, Performance, or Ultra Performance, test the available choices at your actual output resolution. These modes use different scaling choices; lower-resolution input can trade image detail against performance.
- Try DLAA as a separate comparison. If available, compare it when image quality is the priority and the performance cost is acceptable. DLAA applies anti-aliasing at native resolution, so it is not an equivalent replacement for a lower-resolution Super Resolution mode.
- Change Ray Reconstruction separately. In a ray-traced or path-traced scene, compare the same view with the game’s Ray Reconstruction control changed, if the game provides one. This can help establish whether the symptom is associated with that reconstruction path; it does not guarantee a player-side fix.
- Test Frame Generation separately. If the issue concerns motion presentation, toggle Frame Generation independently of Super Resolution and compare. NVIDIA says Frame Generation is paired with Reflex for responsiveness, but Frame Generation does not fix underlying detail or image reconstruction.
For each comparison, check fine detail and sharpness, shimmer or flicker while moving, frame rate, and whether the change is limited to ray-traced content. Record what improves and what worsens rather than treating a single setting as a universal cure.
What blur and shimmer can indicate
Some artifacts can stem from how a game integrates DLSS, rather than from a quality mode the player can select. NVIDIA’s developer integration checklist states: “Incorrect or missing jitter can lead to poor anti-aliasing and increased flickering.” Jitter here is an engine input; the statement describes a potential integration failure mode, not a diagnosis of every shimmering image. NVIDIA’s Streamline integration guidance also discusses the developer-side requirements involved.
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For Ray Reconstruction, the checklist says: “Without this, textures will look blurry, smudgy, or low-resolution.” In context, “this” means setting mip-map bias when Ray Reconstruction is enabled. That is an integration requirement for the game developer, not a setting every player can necessarily access or change.
The same developer guidance covers accurate motion vectors, correctly provided exposure, appropriate placement in the post-processing pipeline, and correct buffers. These are implementation details, not ordinary player controls. They help explain why a defect might appear only in a particular game, material, effect, or movement, but they do not establish the cause of an individual player’s symptom.
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Check game and GPU support before expecting a newer model
NVIDIA’s current DLSS materials describe DLSS 4.5 as adding second-generation transformer models for Super Resolution and Ray Reconstruction, while its feature table differentiates support by GPU generation. Availability also depends on the game. Check the exact title and feature rather than assuming that every RTX card can use every DLSS option. NVIDIA says its app can update supported games to use newer DLSS features and models; compare the same scene before and after an update. NVIDIA’s DLSS overview and compatibility information is the reference for current support.
NVIDIA’s DLSS 4.5 Super Resolution FAQ, updated January 14, 2026, says Model M is optimized for Performance mode and Model L for Ultra Performance mode. NVIDIA advises using those models in those modes for the best quality-versus-performance benefit. The same FAQ says RTX 20- and 30-series users may see a larger performance impact from the newer model because those GPUs do not support FP8, and may prefer the previous Model K preset for higher frame rates. This is NVIDIA’s guidance, not an independent benchmark or a guarantee for a specific game. NVIDIA’s DLSS 4.5 Super Resolution FAQ provides that model and hardware guidance.
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Keep model specifications separate from game performance
NVIDIA’s Gamescom 2026 announcement reports that its new Ray Reconstruction model has 35% more compute capability and 20% more parameters than the prior model, while stating performance remains similar. These are NVIDIA-reported model comparisons, not measurements of game FPS or a promised image-quality gain in a particular title. NVIDIA’s Gamescom 2026 announcement gives the figures.
No independent named benchmark here quantifies blur or shimmer across games. The practical test remains game-specific: identify the feature, keep the scene and output resolution consistent, and compare the relevant settings one at a time.
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