DLSS, short for Deep Learning Super Sampling, is an AI upscaling feature that lets a game render at a lower internal resolution and then reconstructs a sharp, higher-resolution image from it. The payoff is a higher frame rate without a matching drop in visual quality, which is why it is so popular for hitting smooth performance at 4K or on midrange hardware. Newer versions also add frame generation, which inserts AI-created frames between rendered ones to push the frame counter even higher. This guide explains how DLSS works and when it is genuinely worth enabling.
How DLSS works
Rendering every pixel at full resolution is expensive, so DLSS renders fewer pixels and uses a trained AI model to fill in the rest. The model looks at the current frame, information about how things are moving, and data from previous frames to predict what a full-resolution image should look like. Because reconstruction runs on dedicated hardware on the graphics card, it is far cheaper than rendering natively. The result is an image that, in its higher-quality modes, often looks close to native resolution while running noticeably faster.
DLSS modes and what they trade
| Mode |
What it does |
Best for |
| Quality |
Renders closer to native, lighter speed gain |
Sharpness-first players |
| Balanced |
Middle ground between speed and clarity |
Most people |
| Performance |
Renders much lower, large speed gain |
Pushing high resolutions |
| Frame generation |
Inserts AI frames between real ones |
Raising frame-counter numbers |
The trade is straightforward. The more aggressive the mode, the more frames you gain and the more reconstruction artifacts you risk, such as shimmering on fine detail or slight smearing in fast motion. Frame generation is separate from upscaling; it boosts the displayed frame rate but can add a touch of input latency, so it suits single-player games more than twitchy competitive ones. To understand the silicon doing this work, see our explainer on what a graphics card is in 2026.
Why it matters
DLSS reshaped how people think about resolution and frame rate. Instead of choosing between a crisp picture and a smooth one, you can often get a usable amount of both, and older or cheaper hardware can punch above its weight. It is also closely tied to demanding visual features; turning on heavy effects becomes far more affordable when upscaling absorbs the cost. The flip side is that DLSS is a vendor-specific feature tied to particular graphics hardware, and competing upscalers exist, so it is not universal. Treat it as a powerful tuning knob rather than a substitute for adequate hardware.
How to use it well
- Start in Quality or Balanced mode; most players will not see a difference from native at a glance.
- Drop to Performance only if you need the frames, then check fine detail and edges for shimmer.
- Reserve frame generation for single-player titles where a little extra latency does not matter.
- Pair it with the visual features you actually want, since the freed-up performance enables them.
- Compare against native at your resolution; at lower resolutions there is less detail for the AI to rebuild.
What to skip
- The most aggressive mode at low resolutions; the AI has too little detail to reconstruct cleanly.
- Frame generation in competitive shooters; the added latency can hurt more than the extra frames help.
- Assuming DLSS replaces a capable card; it stretches hardware, it does not make weak hardware fast.
- Leaving sharpening cranked; over-sharpening can make reconstruction artifacts more obvious, not less.
FAQ
Does DLSS make games look worse than native?
In its higher-quality modes the difference is usually hard to spot and sometimes looks cleaner. Aggressive performance modes can introduce shimmer or blur in fast scenes.
Is DLSS the same as frame generation?
No. Upscaling reconstructs a higher-resolution image from a lower one, while frame generation inserts AI-created frames between rendered ones to raise the frame counter.
Does DLSS work on any graphics card?
No. It is a vendor-specific feature tied to particular graphics hardware. Other brands offer their own upscaling technologies instead.
Should I always turn DLSS on?
Often yes, especially at high resolutions, but compare it to native at your settings. If you notice artifacts that bother you, step down to a milder mode.
Where to go next
Understand the hardware behind it in What Is a Graphics Card in 2026, learn the related rendering feature in What Is Ray Tracing in 2026, and pick the right panel in 1440p vs 4K in 2026.