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AMD has recently expanded its FidelityFX suite with the new FSR 4.0.2, which allows developers to integrate this technology into their games via the latest FFX SDK 2.0. A user tested the technology on an AMD Radeon RX 9070 XT GPU and observed a computational cost.
AMD’s FSR 4 is resource-intensive due to its AI-based features. Without Frame Generation and V-Sync, the RX 9070 XT achieved 276 FPS with FSR 4.0.2, compared to 290 FPS with FSR 3.1.5. The upscale time increased from 0.51ms for FSR 3.1.5 to 0.70ms for FSR 4, indicating a 37% higher GPU utilization.
The performance drop is due to the advanced AI techniques used in FSR 4, such as motion vectors and temporal data usage, which are computationally expensive. However, this impact is minimal for most gaming sessions; an average gamer won’t notice much difference.
For competitive scenarios, it’s advisable to avoid upscaling technologies like FSR 4 if you prioritize FPS over visual performance. For casual gaming, the trade-off in FPS might be acceptable due to the improved visuals and ease of integration for developers.
In conclusion, while AMD’s FSR 4 offers enhanced graphics quality, it comes at a cost to frame rate, particularly noticeable under certain conditions but generally negligible for most users.
