Microsoft has made AMD FSR 4 available to Xbox developers, bringing machine-learning-based upscaling to Xbox Series X and Series S. The company has also shared GPU performance figures showing that AMD FSR 4 on Xbox requires between 1.29 ms and 5.2 ms of processing time, depending on the console, output resolution, and model used.
Claude Marais, Principal Software Engineering Lead on Team Xbox, announced the update and shared details of Microsoft’s work with AMD. The two companies have optimized FSR 4 to run on the RDNA 2-based GPUs found in Xbox Series X and Series S, allowing developers to use machine-learning upscaling on existing console hardware.
Microsoft has also released a new Game Development Kit (GDK) sample demonstrating how developers can integrate FSR 4 across Xbox Series X|S and Windows using AMD’s FSR SDK. Support extends to the wider Xbox ecosystem, including the ASUS ROG Xbox Ally handhelds.
The sample includes two INT8 models, Full and Lite, giving developers options for balancing image quality against GPU performance at different rendering resolutions.
AMD FSR 4 GPU Performance Costs on Xbox Series X|S
Microsoft’s published GPU timings show that the Xbox Series X can run the Lite model at a cost of 1.29 ms for 1440p output and 2.75 ms for 4K. The Full model requires more processing time, reaching 1.95 ms at 1440p and 3.86 ms at 4K.
The Xbox Series S has higher processing costs despite targeting lower output resolutions. FSR 4 Lite takes 1.9 ms at 1080p and 3.4 ms at 1440p, while the Full model requires 2.9 ms and 5.2 ms, respectively.
| Console | Output Resolution | FSR 4 Lite | FSR 4 Full |
|---|---|---|---|
| Xbox Series X | 1440p | 1.29 ms | 1.95 ms |
| Xbox Series X | 4K | 2.75 ms | 3.86 ms |
| Xbox Series S | 1080p | 1.9 ms | 2.9 ms |
| Xbox Series S | 1440p | 3.4 ms | 5.2 ms |
These figures represent the GPU time spent running the upscaling process rather than the total time required to render a frame. Developers can use the Full and Lite models to determine which option works best for their games and performance targets.
Microsoft said its collaboration with AMD is intended to improve image quality while keeping GPU processing costs manageable on current Xbox hardware.
The company has not announced which Xbox games will support FSR 4 or when the first titles using the technology will become available.
