Xbox developers can now tap into AMD FSR 4.1.2, a machine-learning upscaling suite integrated into the latest Microsoft Game Development Kit. Announced November 5, 2026, by Jason Ronald, Vice President of Gaming and the Xbox Ecosystem, the update brings neural network-based image reconstruction to the Xbox Series X and Series S.
Balancing Neural Loads on RDNA 2
The kit introduces two distinct neural network models: Full and Lite. This bifurcation allows developers to calibrate performance against the distinct hardware constraints of the Series X and Series S. By cycling through these modes, studios can target the specific threshold where visual fidelity meets frame-rate stability.
AMD FSR Upscaling 4.1.2 on XBOX Series X|S is available to developers today! Our new GDK sample demonstrates both Full and Lite models, optimized for each console. Thanks to our partners at @AMD for the great collaboration! We can't wait to see what developers create with it.…
— https://x.com/jronald/status/2118133331577770092
The algorithm is tuned specifically for the RDNA 2 architecture. It aims to eliminate ghosting artifacts behind moving objects and sharpen detail in complex particle systems, all while eliminating the need for manual transparency mask adjustments. Technical documentation details five scaling profiles:
- NativeAA (1.0x): High-quality anti-aliasing at a native 3840×2160 resolution.
- Quality (1.5x): Upscales from an input of 2560×1440.
- Balanced (1.7x): Upscales from a 2258×1270 render resolution.
- Performance (2.0x): Uses a 2.0x multiplier from a 1920×1080 base.
- Ultra Performance (3.0x): Reconstructs a 4K image from a 1280×720 source, featuring automatic texture detail shift correction.
Standardizing Machine-Learning Upscaling
Version 4.1.2 marks the culmination of a joint effort between Microsoft and AMD to retrofit neural network processing onto RDNA 2 graphics hardware.
Because FSR is already a fixture in most current-generation titles, the barrier to entry for this update is low. Games already utilizing earlier versions of FidelityFX, such as The Witcher 3: Wild Hunt – Remastered, serve as the primary candidates for this upgrade path. While the software promises improved clarity and stability across existing libraries, it remains to be seen how effectively the Lite model will maintain image integrity on the lower-spec Series S hardware.