DLSS / FSR Calculator

What are DLSS and FSR?

DLSS (Deep Learning Super Sampling) and FSR (FidelityFX Super Resolution) are upscaling tools from NVIDIA and AMD. Basically, both let your game run at a lower resolution, then use smart upscaling to fill in the details and show it at your monitor's full resolution. That means way higher frame rates without a big hit to visual quality. NVIDIA's DLSS uses special AI hardware called Tensor Cores, which you'll only find on their RTX graphics cards. The AI behind DLSS has been trained on tons of high-res images, so it can rebuild those little details regular upscaling would miss. AMD's FSR works differently—it relies on a spatial upscaling algorithm with some machine learning tricks, and you can use it on almost any modern GPU, whether it's from AMD, NVIDIA, or even Intel. Speaking of Intel, they've got their own upscaler called XeSS, which uses AI on their Arc GPUs and falls back to a less advanced method on other cards. All these upscalers have seriously changed PC gaming, making high-res, smooth gameplay possible on way more hardware.

DLSS vs FSR: Key Differences

DLSS and FSR both get you higher frame rates and sharper images, but they go about it in different ways. DLSS needs those Tensor Cores, so it only works on NVIDIA RTX 20 series and newer cards. Because it has its own dedicated AI hardware, DLSS doesn't take away from your main GPU performance, and its neural network delivers super sharp, clean images with almost no artifacts. With DLSS 3.5 and up, NVIDIA also added Ray Reconstruction, which swaps out the usual ray tracing denoisers for an AI-powered version—lighting looks cleaner and more accurate as a result.

AMD FSR takes a different approach. It runs on regular GPU shaders, so it works with just about any graphics card—NVIDIA, AMD, old, new, you name it. That's really its big selling point. Even if you're still gaming on something like a GTX 1060 or a budget RX 7600, you still get a nice performance boost with FSR. Now, FSR doesn't tap into dedicated AI hardware like DLSS does. Instead, it leans on spatial analysis and temporal data to rebuild details. Sometimes this means you'll spot softer images or small visual glitches, especially in Performance or Ultra Performance modes. But with FSR 4, AMD's caught up a lot. They've added machine learning tricks, and honestly, in Quality mode, most people can't even tell the difference between FSR and DLSS. If you're running an NVIDIA RTX card, DLSS usually looks a bit better. But if you're on AMD or an older NVIDIA card, FSR is a fantastic option. It really can breathe new life into your games.

Understanding Quality Modes

Both DLSS and FSR let you pick from different quality presets, so you can dial in the right mix of image quality and performance. Each preset changes the internal resolution the game actually renders at. Higher scales mean more native pixels before the upscaler works its magic. Ultra Quality mode runs at about 77% of your target resolution. You'll see a solid 30-40% jump in FPS, and honestly, it looks almost identical to native. Quality mode steps down to about 67% of your resolution and bumps your FPS by 50-60%. Most gamers stick with this one—it balances performance and visuals really well.

Balanced mode goes further, rendering at about 59% internal resolution. You get a bigger FPS boost—60-80%—but you might start to notice a bit of softness or lost detail. Performance mode cuts the resolution in half and can nearly double your frame rate. At 4K, that still means the game's being rendered at 1080p, so the upscaler has enough to work with. But at 1440p, the internal res drops to 720p, so you'll probably see more artifacts. Ultra Performance is the last-ditch option for weak hardware at high resolutions. It sacrifices a lot of image quality, so only use it if you really need to. For most people, Quality mode is the sweet spot. If you need a bit more speed, try Balanced. There's usually no reason to start lower.

Frame Generation Explained

Frame Generation is a newer feature you'll see in DLSS 3 and FSR 3. It actually creates brand new frames between the ones your GPU renders. Instead of just upscaling what's there, it uses AI to look at two real frames and then builds a frame that shows the motion between them. This can make your games look way smoother—sometimes doubling or even quadrupling the frame rate you see. DLSS 3's Frame Generation only runs on NVIDIA's RTX 40 series and up. DLSS 4 on RTX 50 series cards pushes it even further, making up to three extra frames for every real one. That's how you get up to four times the displayed FPS. AMD's Fluid Motion Frames and FSR 3 Frame Generation work on a bigger range of hardware, even some older cards.

There's a trade-off here, though: latency. Since the generated frames aren't tied to real input, there's a tiny delay—usually 8-15 milliseconds. In single-player or cinematic games, you won't notice. The games just look and feel smoother. But if you're into competitive multiplayer, where every split second matters, you might want to skip Frame Generation and just use regular upscaling. NVIDIA Reflex and AMD Anti-Lag can help cut down that latency, and together with Frame Generation, most games still feel responsive—unless you're playing at the absolute highest competitive level.

When to Use Upscaling Technologies

How much upscaling helps depends on your resolution, the game, and the hardware you've got. At 4K, just turn it on. Even top-tier GPUs like the RTX 4080 or RX 7900 XTX can struggle to keep up with demanding games at native 4K. DLSS or FSR in Quality mode can push you well above 60 FPS, and the visual difference is almost impossible to spot. At this resolution, Quality mode still renders at around 1440p internally, so the upscaler has plenty of detail to work with—and the results look fantastic.

If you game at 1440p, upscaling makes a big difference in demanding titles—especially when ray tracing is turned on. But for lighter esports games that already run at high frame rates, you'll usually get the best results sticking with native rendering. Now, 1080p is where things get a bit dicey. In Quality mode, the upscaler drops the internal resolution to about 720p, so it has fewer pixels to work with. That's when upscaling artifacts start to stand out. At 1080p, only turn on upscaling if you really need the extra performance—and if you do, stick to Quality or Ultra Quality modes. Competitive players should be extra careful with any upscaling, no matter the resolution. Frame Generation adds some input lag, and even regular upscaling can cause little visual quirks, like shimmering on wire fences or leaves. Bottom line: test every game for yourself and pick whatever feels right for how you play.

The Future of AI Upscaling

AI upscaling is moving fast. Every new version brings sharper images and smarter tech. DLSS 4.5, for example, uses transformer-based models to cut down on artifacts and keep things more stable over time. AMD's FSR 4, with its improved machine learning, has closed much of the quality gap with DLSS. It's pretty clear where things are going—upscaling is on track to become a standard feature in just about every PC game. As AI models get more advanced and hardware support widens, upscaling will get so good you probably won't be able to tell the difference between upscaled and native at any setting. Frame Generation is evolving too: expect less latency and even more extra frames. AI is starting to handle things beyond just upscaling, like Ray Reconstruction, which ditches hand-tuned denoisers for cleaner, more realistic ray-traced lighting. For PC gamers, all of this means better performance and better visuals at the same time—so you don't need a top-tier rig to enjoy high-end graphics anymore.

Frequently Asked Questions

Does DLSS work on AMD GPUs?

No—NVIDIA's DLSS only works on RTX 20, 30, 40, and 50 series cards because you need those Tensor Cores. If you've got an AMD GPU, use FSR instead. It gives you similar performance boosts and works across pretty much all modern GPUs. Intel's XeSS is another cross-platform option.

Does FSR reduce image quality?

In Quality and Ultra Quality modes, FSR looks close enough to native that most people won't notice a difference in action. But in Performance or Ultra Performance, you start to see more softening, ghosting, and a bit of detail loss, especially in fast scenes. For the best image, stick to Quality or Balanced, and only switch to Performance if you really need the extra frames.

What is Frame Generation?

Frame Generation creates new frames in between the ones your GPU actually renders, so your frame rate looks a lot higher. DLSS 3 Frame Generation needs an RTX 40 series or newer card, but FSR 3 Frame Generation works on more hardware. The catch? You get a bit more input lag—usually around 8 to 15 milliseconds.

Should I always use DLSS/FSR?

Not always. If your GPU already runs the game smoothly at your target resolution and frame rate, you don't need upscaling. Upscaling shines when you're struggling to hit your target frame rate, especially at 1440p or 4K. At 1080p, native rendering often looks a bit sharper.

Which DLSS quality mode should I use?

Start with Quality mode—that usually gets you 50-60% more FPS with barely any hit to image quality. If you need more speed, try Balanced next. Only go down to Performance if you have to, and leave Ultra Performance for those extreme cases, like trying to run 4K on a card that just can't handle it.

Sources & Methodology

Our data and recommendations are based on information from these trusted sources:

• Tom's Hardware
• TechPowerUp
• Steam Hardware Survey
• 3DMark

Last updated February 2026.