If you’ve been exploring graphics settings in PC games or researching your first gaming PC, chances are you’ve seen an option called DLSS, and wondered whether turning it on is a good idea.

Short answer: yes, in most cases.

Long answer: let’s explain what DLSS actually is, how it works, and when it’s actually worth using.

Looking to boost your FPS? Read our article: 'How to improve your FPS on your gaming PC: Quick wins to advanced tweaks'

NVIDIA announces DLSS 4.5

Why do modern PC games struggle with performance?

Modern games look incredible, but that visual detail comes at a cost. High resolutions, realistic lighting, reflections, shadows, and massive open worlds all put heavy strain on your graphics card (GPU).

Rendering a game at native 1440p or 4K means your GPU has to draw millions of pixels every single frame. The higher the resolution, the more work it has to do, which is why FPS can drop sharply even on decent hardware.

This is the problem DLSS was created to solve.

What is DLSS and how does it work?

DLSS stands for Deep Learning Super Sampling. It is Nvidia’s proprietary technology designed to boost gaming performance and enhance image quality through artificial intelligence. At its core, DLSS allows a game to render at a lower resolution than your display, then intelligently upscale the image to your target resolution. Because this upscaling is handled by a neural network trained on vast amounts of gameplay data, it avoids the heavy performance penalty normally associated with running games at higher resolutions.

Instead of rendering a game at full resolution, DLSS works by:

  1. Rendering the game internally at a lower resolution
  2. Using AI to upscale the image back to your target resolution
  3. Cleaning up edges and detail so it still looks sharp on screen

Your GPU does less work per frame, but the image on your screen still looks close to native resolution.

Does DLSS increase FPS?

Yes! And often by a noticeable amount.

Because your GPU is rendering fewer pixels, it can produce frames faster. In many games, enabling DLSS can:

  • Increase average FPS
  • Reduce sudden frame drops
  • Make gameplay feel smoother, especially at higher resolutions

The performance gain depends on the game, your GPU, and the DLSS mode you choose, but it’s not unusual to see 20–50% higher FPS in supported titles.

Does DLSS affect image quality?

This is the part most new PC gamers worry about, and it’s a fair concern.

In practice, DLSS often looks very close to native resolution, and in some cases can even look better thanks to cleaner edges and reduced shimmering.

DLSS modes explained

Most games offer several DLSS modes:

  • Quality: Best image quality, smaller FPS boost
  • Balanced: Middle ground between clarity and performance
  • Performance: Larger FPS gains, slightly softer image
  • Ultra Performance: Designed mainly for 4K, with noticeable quality trade-offs

For most players, DLSS Quality is the sweet spot.

Is it better to use DLSS on or off?

In most cases, it’s better to turn DLSS on, especially if:

  • You’re gaming at 1440p or 4K
  • Your FPS feels inconsistent
  • You want smoother gameplay without lowering settings

You might leave DLSS off if:

  • You’re already getting very high FPS at native resolution
  • You prefer absolute image sharpness over performance
  • The game’s DLSS implementation isn’t great (rare, but it happens)

There’s no risk in trying it. You can toggle it on and off in seconds.

How to turn on DLSS in games

DLSS is enabled inside the game, not in Windows.

Typical steps:

  1. Open the game’s Graphics or Video settings
  2. Look for DLSS, Upscaling, or NVIDIA DLSS
  3. Enable it and choose a mode (start with Quality)
  4. Apply settings and test performance

If you don’t see DLSS, the game likely doesn’t support it, or your GPU doesn’t.

What do you need to use DLSS?

To use DLSS, you’ll need:

  • An NVIDIA RTX graphics card (RTX 20, 30, 40 or newer)
  • A game that supports DLSS
  • Updated NVIDIA drivers

DLSS does not work on older GTX cards or AMD GPUs.

Why DLSS matters for gaming

DLSS has reshaped what is possible in PC gaming and continues to improve with each new iteration. Nvidia has made it clear that the technology remains a long-term focus, with ongoing development aimed at better image quality, higher performance, and reduced latency. While it is not without limitations, DLSS can be transformative when implemented well, offering smoother gameplay and extending the life of expensive hardware.

At the same time, gamers now have more choice than ever. AMD and Intel provide capable alternatives, and the best option ultimately depends on the games you play, the hardware you own, and the value you place on specific features. As with any PC component, balancing cost, performance, and real-world benefits remains key to making the right decision.

DLSS matters because it helps PC gamers get smoother performance without sacrificing visuals, especially useful if you’re new to PC gaming or trying to make the most of your hardware. It’s not a trick, and it’s not “fake performance”. It’s a smart way of letting your GPU work more efficiently.

If your system supports it, DLSS is one of the best settings you can turn on.

Key takeaways

  • DLSS uses AI upscaling to improve performance
  • It usually increases FPS while keeping image quality high
  • DLSS Quality mode is ideal for most players
  • You can safely turn it on and test it per game
  • It requires an NVIDIA RTX graphics card

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