FidelityFX Super Resolution (FSR) is a technology developed by AMD that enhances gaming performance by upscaling lower-resolution images to higher resolutions. This allows games to run smoother on various hardware while maintaining visual quality, making it accessible for a wider range of gamers. FSR works by using advanced algorithms to predict and fill in details in images, resulting in clearer visuals without the heavy processing load. It is compatible with many graphics cards, not just those from AMD, which helps improve frame rates and overall gaming experiences across different platforms.