What is AMD FSR?
AMD FidelityFX Super Resolution (FSR) is an open-source upscaling technology designed to boost frame rates in games by rendering at a lower resolution and then intelligently reconstructing the image to your monitor's native resolution. This allows for smoother gameplay and higher visual fidelity, especially on less powerful hardware or when pushing demanding settings.
How FSR Works: The Upscaling Magic
FSR operates by rendering a game at a lower internal resolution, such as 1080p, even if your monitor is 4K. It then applies a sophisticated spatial upscaling algorithm and sharpening filter to reconstruct the image to 4K. This process significantly reduces the computational load on your GPU, leading to higher frame rates without a drastic loss in perceived image quality.
FSR Generations: From 1.0 to 3.0+
FSR has evolved through several generations. FSR 1.0 was a basic spatial upscaler, while FSR 2.0 introduced temporal upscaling, utilizing data from previous frames for better image reconstruction and reduced artifacts. FSR 3.0 further enhances performance with AMD Fluid Motion Frames (AFMF), a frame generation technology that inserts interpolated frames between rendered frames, similar to DLSS 3's Frame Generation, for even higher FPS.
FSR vs. NVIDIA DLSS: Key Differences
The primary difference between FSR and NVIDIA DLSS (Deep Learning Super Sampling) lies in their approach and hardware requirements. FSR is open-source and works on a wide range of GPUs, including AMD Radeon (RX 6000 series, RX 7000 series), NVIDIA GeForce (RTX 20 series, RTX 30 series, RTX 40 series), and even some older cards. DLSS, conversely, is proprietary and requires NVIDIA RTX GPUs with dedicated Tensor Cores for its AI-powered upscaling.
Performance and Image Quality Trade-offs
While FSR offers broad compatibility, DLSS generally provides superior image quality, especially at lower resolutions, due to its AI-driven temporal reconstruction. However, FSR 2.0 and 3.0 have significantly closed the gap, offering excellent performance gains with minimal visual compromise in many titles. The choice often comes down to your GPU and the specific game's implementation.
Key takeaways
- •FSR boosts frame rates by rendering games at lower resolutions and intelligently upscaling them.
- •FSR is open-source and compatible with a wide range of GPUs, including AMD Radeon and NVIDIA GeForce.
- •FSR 3.0 includes frame generation (AFMF) for even higher FPS, similar to DLSS 3.
- •DLSS generally offers slightly better image quality due to AI, but FSR provides broader hardware support.
- •Enable FSR in supported games to get more performance from your existing GPU, especially at 1440p or 4K.
What to do next
- →Browse GPUs with FSR 3.0 support
- →Read our comparison: FSR vs. DLSS vs. XeSS
- →Find games that support AMD FSR
Ready to build?
Skip the research — tell our AI your goal and budget. It picks every part for you.