AMD has released its latest Software Development Kit (SDK) version 2.3, bringing updates to several AMD FSR Redstone DLL-based machine learning technologies. According to AMD, the most significant change from the FSR SDK 2.2, released in March, is an update to Ray Regeneration, now at version 1.2. In Ray Regeneration v1.2, AMD has implemented quality improvements and optional add-on ambient and specular denoising. This means that with Ray Regeneration, games can deliver much better results compared to analytical denoising using traditional machine learning. Since FSR Ray Regeneration denoising is decoupled from FSR Upscaling, the visual fidelity should be significantly improved when running on AMD GPUs.

Additionally, in this SDK release, AMD has introduced FSR Upscaling 4.1.1 to the AMD Radeon RX 7000 series of GPUs, based on the RDNA 3 GPU architecture. Beyond this specific RDNA 3 feature, the FSR Frame Generation version has been updated to 4.0.1, which is a minor update for machine learning-based frame generation and the frame generation swapchain. This update provides an easy way to handle dispatching the workloads required for frame interpolation and frame pacing. Since AMD GPUs don't have hardware-based flip metering for frame pacing, AMD uses software pacing presentation to maintain consistent frame generation.

FSR 4.1 for RDNA 3 has been released for gamers with the latest AMD Software: Adrenalin Edition 26.6.2 graphics driver. Radeon RX 7000 series gamers can now enjoy over 300 games running FSR 4.1, providing a significant performance boost and finally offering features that RDNA 4 gamers have been enjoying for a while. We have yet to learn what FSR 4.1.1 means in this SDK, but it likely includes some enhancements for RDNA 3 that will be implemented in the coming weeks as AMD continues to refine its RDNA 3 FSR upscaling models.