Key takeaways
- Upscaling (DLSS/FSR/XeSS Super Resolution): Renders the game at a lower resolution and reconstructs a sharp higher-resolution image, improving real performance and lowering latency.
- Frame generation: Inserts AI-created frames between real ones to raise the displayed frame rate, improving perceived smoothness but not responsiveness.
- They stack: Modern implementations often run upscaling and frame generation together for the biggest headline numbers.
What's inside
Frame generation is one of the most talked-about and misunderstood features in modern PC gaming. In simple terms, it uses AI to create entirely new frames that sit between the ones your GPU actually renders, boosting the frame counter far beyond what the raw hardware produces. NVIDIA’s DLSS Frame Generation, AMD’s FSR Frame Generation, and Intel’s XeSS variants all promise smoother motion, but the reality has important nuance around latency and image quality.
This guide explains what frame generation really does, how it differs from upscaling, when it genuinely helps, and when you are better off leaving it disabled. Understanding the trade-offs, especially the difference between a smoother-looking frame rate and a more responsive one, is the key to using it well rather than being fooled by a big number on the overlay.
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Watch: What Is Frame Generation? — Video Review
How Frame Generation Works
Your GPU renders two real frames, and the frame generation algorithm analyzes the motion between them, using motion vectors and AI, to synthesize an interpolated frame that it inserts in the middle. The result is a higher displayed frame rate. Crucially, these generated frames are not based on new game logic or your latest input; they are predicted, which is why latency behaves differently than with traditionally rendered frames.
Frame Generation vs Upscaling
- Upscaling (DLSS/FSR/XeSS Super Resolution): Renders the game at a lower resolution and reconstructs a sharp higher-resolution image, improving real performance and lowering latency.
- Frame generation: Inserts AI-created frames between real ones to raise the displayed frame rate, improving perceived smoothness but not responsiveness.
- They stack: Modern implementations often run upscaling and frame generation together for the biggest headline numbers.
The Latency Trade-Off
This is the catch. Because a generated frame is interpolated between two real ones, the technique adds a small amount of input latency, and it does not make the game feel more responsive even though it looks smoother. Technologies like NVIDIA Reflex and AMD Anti-Lag help offset this, but frame generation is best when your base frame rate is already decent, not when you are trying to rescue a game running at 30 fps.
When to Use It (and When Not To)
Frame generation shines in single-player and visually rich games where smoothness matters more than split-second reaction, and where your card already produces a solid base frame rate (ideally 60 fps or higher before generation). Avoid it in competitive shooters where input latency is everything, and be skeptical of using it to prop up a very low base frame rate, where artifacts and lag become obvious.
Image Quality Considerations
Generated frames can introduce artifacts, ghosting around fast-moving objects, warping on UI elements, or shimmering, especially at lower base frame rates where there is more change to interpolate between real frames. Quality has improved dramatically across recent GPU generations, and at high base frame rates artifacts are usually hard to spot. The higher your real frame rate before enabling it, the cleaner the result.
Tips
- Enable Reflex or Anti-Lag: Always pair frame generation with a latency-reduction feature to counter the added input lag.
- Aim for a high base frame rate: Turn it on when your card already hits 60+ fps for the smoothest, cleanest result.
- Skip it in esports: For competitive shooters, prioritize real frames and low latency over a higher displayed number.
- Judge by feel, not the counter: A 120 fps reading with generation can feel like 60 fps to your hands, so test whether it actually plays better.
Frequently Asked Questions
Does frame generation increase input lag?
Slightly, yes. Because generated frames are interpolated rather than freshly rendered from your input, latency rises a little. Features like NVIDIA Reflex help offset it, but it never improves responsiveness.
Is frame generation the same as DLSS?
Not exactly. DLSS is a suite; its Super Resolution upscales for real performance gains, while DLSS Frame Generation specifically inserts AI frames. They are related but do different jobs and can be used together.
Should I use frame generation in competitive games?
Generally no. Competitive shooters reward the lowest possible latency, and frame generation adds input lag, so real frames matter more than a higher displayed frame rate.
Do I need a specific GPU for frame generation?
It depends on the technology. Some versions require recent GPU hardware, while AMD’s FSR frame generation is more broadly compatible. Check which implementation your card and game support.
Conclusion
Frame generation is a genuinely useful tool when you understand it: it trades a little latency for a lot of visual smoothness, and it works best when your base frame rate is already healthy. Use it in immersive single-player games with a latency-reduction feature enabled, skip it in competitive titles, and always judge the result by how the game feels, not just the number on screen.
