FSR 4.1.2 comes to Xbox: AI reaches Series X and S

After expanding to Radeon RX 6000 cards and several mobile platforms, FSR Upscaling is taking another step forward. AMD confirms that version 4.1.2 is integrated into the October 2026 Microsoft Game Development Kit. Registered Xbox developers have the components needed to add it to their games.

This is image reconstruction using machine learning: the engine can render an image at a lower resolution, then upscale it for display. Generating intermediate frames is a separate feature; this announcement therefore does not mean Xbox consoles automatically gain Frame Generation.

Studios can choose between Full INT8 and Lite INT8, both usable on Series X and Series S. Lite is less than half the size of the Full model and reduces the cost of reconstruction.

AMD notes, however, that the upscaler uses the same amount of memory at identical rendering and output resolutions. A smaller model therefore does not mean, in this case, that the memory required for processing is halved.

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Microsoft provides the following measurements in its GDK sample. They describe only the GPU time spent on upscaling, not the total time needed to render a frame or the frame rate achieved in a commercial game.

Source: Microsoft, GDK sample published on 4 November 2026. Lower times are better. The announcement’s table does not specify the quality mode and rendering resolution for each row; these figures are not a universal performance comparison between the two consoles.

The official sample allows switching between Full, Lite and FSR 3 to observe the trade-off between visual quality and GPU cost within the same scene. The best model to use will therefore depend on the game and its performance target.

In all four published cases, Lite takes less time than Full. On Series S with 1440p output, the gap reaches 1.8 ms. That provides useful headroom, but does not guarantee equivalent quality: the table measures neither detail retained in motion nor reconstruction artefacts.

For context, a target of 60 frames per second allows roughly 16.67 ms per frame. The Full model’s 5.20 ms on Series S accounts for almost 31% of that. This calculation illustrates the upscaler’s potential share of that budget; it does not predict final performance, since the other rendering operations also occupy the GPU.

Availability of the kit does not amount to a general update of the game library. For players, the next milestone will be the announcement of a game or patch using this version, along with its graphics modes and comparisons in motion.

On PC, AMD is continuing to expand its SDK in parallel. Our article on FSR Upscaling 4.1 for Radeon RX 6000 cards and portable devices covers this other step in compatibility.