AMD officially announces major update to FSR, bringing machine learning ray tracing, frame generation, etc.

AMD announced a major update to its FSR at Computex 2025, codenamed "Redstone."This update will introduce a number of new technologies, including neural network caching, machine learning ray tracing, and machine learning frame generation, and is expected to be launched in the second half of 2025.

Among them, the biggest change of FSR Redstone is the introduction of neural network caching technology, which can continuously learn how light is reflected in the scene to predict and store indirect lighting.

Machine learning's ray tracing is similar to the ray reconstruction technology in NVIDIA's DLSS, which regenerates pixels that cannot be accurately path traced through a neural network, predicting and filtering granular noise in real time.

FSR Redstone will also support machine learning frame generation, which is similar to NVIDIA's DLSS 3, shifting the load of frame filling to the AI ​​accelerator within the GPU, thereby improving frame rates and visual effects.

Unfortunately, just like FSR 4, FSR Redstone will only support RDNA 4 GPUs at launch, but future updates may push some features to the older RDNA architecture.