During the recent launch of RX 9070 series GPUs, AMD introduced the new FidelityFX Super Resolution 4 (FSR 4 for short), which is only supported on the new RDNA 4-based GPUs, along with 30-plus games in the initial support list for the new ML-based upscaling algorithm. Just like previous versions though, it didn’t take long before modders worked out a way to put the new tech into currently unsupported titles.
FSR 4 Modding Begins
The tool in question is called ‘Optiscaler‘, which is a tool that enables (unofficial) support for all the existing upscaling technologies in a game, be it earlier versions of FSR, Intel’s XeSS, or even NVIDIA’s DLSS, with the requirement being that the game must support any of the three existing upscaling technologies first. Besides upscaling, the tool even supports frame generation and latency reduction features.
To demonstrate, modder High Yield published a guide on X (Twitter) using Cyberpunk 2077 as the example – the game has already stopped getting any new features to make way for new projects, and the lack of FSR 3.1 support meant that it won’t be getting a “drop-in” upgrade to FSR 4. With this tool, users can enable FSR 4, and the modder claimed that full path tracing is achievable at the resolution of 1440p and 60FPS framerate.
Of course, the nature of unofficial tools is that some things aren’t guaranteed to work despite modders’ best efforts, especially when it comes to games that involve multi-player elements, and mods can often interfere with game files and potentially get players into trouble in online gameplay. Given that Cyberpunk 2077 is strictly an single-player game, modding won’t be an issue – and there certainly are plenty of games out there that can still benefit from this mod, as gamers are upgrading their PCs with the new Radeon cards en masse.
Pokdepinion: A pretty neat mod, I shall say.
