Nvidia’s Deep Learning Super Sampling, or DLSS, has become a cornerstone feature of modern PC games. It started as a way to boost your performance by rendering a game at a lower resolution, but the prominence and popularity of DLSS have prompted Nvidia to add even more features under the name.
This bundle of features can get confusing, but Nvidia puts up guardrails depending on the GPU you have. All RTX graphics cards support DLSS Super Resolution and Nvidia Reflex. Only RTX 40-series GPUs, however, support Frame Generation and Ray Reconstruction, in addition to Super Resolution and Reflex. If a game supports a feature like Frame Generation and your graphics card doesn’t, you won’t be able to turn on the feature in a game.
Your output resolution — the resolution on your display — influences performance and image quality quite a bit. The performance benefits will be lower at lower output resolutions, and the image quality will be worse. At 4K, for example, the Performance mode looks great. At 1080p, it’s much worse, both in terms of image quality and performance.
There are times when Frame Generation is problematic, however. It does not improve your game’s responsiveness; it just makes your game look smoother. Because of that, if you’re using Frame Generation to take a game from 30 frames per second to 60 fps, it will still feel like you’re playing at 30 fps. This effect is minimized the higher your initial frame rate is, so it’s best to use Super Resolution and Frame Generation together.
Reflex Reflex isn’t technically part of DLSS, but you’ll see it alongside DLSS features a lot. It synchronizes the relationship between your CPU and GPU so that neither component is waiting on the other to render a frame. This reduces overall system latency, making your games feel more responsive. It’s a toggle like Ray Reconstruction or Frame Generation.
How to get the most out of DLSS DLSS is available in hundreds of games, and that list is only growing. If you have an RTX GPU, you’ll probably turn on at least some features of DLSS, especially in demanding titles like Alan Wake 2 and Cyberpunk 2077. Here’s how to get the most out of the feature set.
Image quality is also a factor at lower resolutions, such as 1080p. As you move down the quality modes, you’re effectively giving the AI algorithm less information to work with. At a high resolution like 4K, this isn’t a problem, as the algorithm already has plenty of information, even with DLSS’ Performance mode. That same isn’t true at 1080p, and the more demanding quality modes can stretch the bounds of what DLSS is capable of.
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