Key Takeaways
1. The modding community has created OptiScaler, allowing FSR 4 to work in games that support DLSS 2 or XeSS.
2. OptiScaler enables users to swap between different upscaling technologies for better performance on compatible GPUs.
3. The mod functions as a mediator using API methods, enhancing frame generation and reducing lag.
4. Current support for FSR 4 is experimental and limited to Nightly builds, which may have performance issues.
5. Users have reported significant performance improvements, such as over 60 FPS at 1440p in Cyberpunk 2077 using FSR 4 with OptiScaler.
The modding community has once again stepped up where companies like Nvidia, Microsoft, and AMD have fallen short. Recently, they created a mod that introduces FSR 4, or AMD’s FidelityFX Super Resolution, to any game that already supports DLSS 2 or XeSS. Currently, this mod is limited to the latest Radeon RX 9070 and RX 9070 XT GPUs, allowing more games to perform better on systems with these graphics cards, instead of just the few that currently offer the upscaling feature.
Mod Details
Uploaded by user cdozdil on GitHub, the mod is named OptiScaler. It enables games that have support for Nvidia’s Deep Learning Super Sampling (DLSS) 2, FSR 2, or Intel’s XeSS to swap out these technologies for any of the other upscalers, including FSR 4. It also works in reverse; for games that only support FSR or XeSS, the mod lets users add support for DLSS, which might perform better on systems with RTX GPUs. This functionality allows players to utilize the frame generation technology that these upscalers provide, even if the game developers haven’t officially included support.
How It Works
The GitHub page explains that OptiScaler functions by using the API methods from these different upscaling technologies and acting as a mediator to direct the game to select the user’s desired upscaler. When used with other mods like OptiFG, Nukem’s dlssg-to-fsr3, and FakeMichau’s FakeNvapi, it can facilitate frame generation and Anti-Lag 2.
Current Limitations
It’s important to mention that the support for FSR 4 is still in the experimental phase and can only be used through Nightly builds. This means there might be some issues, and the overall performance might not be as refined as when using the other upscalers. However, one user reported impressive results with FSR 4 through OptiScaler while playing Cyberpunk 2077, achieving over 60 FPS at 1440p with full Path Tracing, which is one of the most demanding settings in the game. Since the game does not officially support FSR 3.1, it’s unlikely there will be any official backing for FSR 4 either.
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