AMD's FSR 4 expands its compatibility range with OptiScaler's integration, which allows for the upconversion of contemporary upscalers to FSR 4, providing frame generation, except for games that are Vulkan-dependent or contain anti-cheat software.
In the rapidly evolving world of gaming, AMD's FSR 4 has emerged as a significant advancement in upscaling technology. However, its current support is limited to RDNA 4 GPUs, and it doesn't natively work with the Vulkan API. This is where OptiScaler steps in, offering a free solution to modernize upscalers in a wide variety of games.
OptiScaler is a third-party application designed to inject the FSR 4 upscaling and frame generation technology into games that only officially support older FSR versions, such as FSR 2. This ingenious tool can upgrade your gaming experience by leveraging FSR 4's machine learning upscaler and frame generation, even if the game itself hasn't been updated to support it natively.
Currently, native FSR 4 support is quite limited, with approximately 65 games supporting it, most of which are obscure titles. OptiScaler can significantly increase the number of games with FSR 4 support. However, it's essential to note that OptiScaler requires a game with FSR 2 or above, or DLSS 2 or above, to work effectively.
One of the notable games yet to officially support FSR 4 is Cyberpunk 2077. While modded work with OptiScaler has been attempted, with mixed results, the community hopes CD Projekt Red will officially add FSR 4 support.
AMD's intention is to make FSR 4 broadly available through the updated FidelityFX SDK and driver support, but wide native game support seems to be in progress. Recent AMD updates hint that any game with FSR 3.1 might automatically use FSR 4 via driver override soon, but this is not yet universal.
To use OptiScaler, you need to manually move around DLLs and install FSR 4 in the game's directory. It's worth mentioning that the version of OptiScaler that supports this is a test build, currently available through the developer's Discord, not the general public release.
OptiScaler can also replace frame generation technology and handle anti-lag features like Nvidia Reflex. However, it does not support games that use anti-cheat software or the Vulkan API.
When compared to Nvidia's DLSS technologies, AMD's FSR 4 update now matches them in terms of performance. However, the adoption of FSR 4 is currently behind that of Nvidia's DLSS. As of May 2025, over 125 games have DLSS 4 (with frame generation) support.
In summary, OptiScaler is a valuable tool for gamers who want to experience the benefits of FSR 4 in games that don't natively support it. While it requires manual tweaking of files for each game and installation of FSR 4 in the game's directory, it offers a significant upgrade to the gaming experience, especially for those with RDNA 4 GPUs.
Read also:
- Increase in train disruptions seen in 2021 by a factor of two
- Tesla introduces Model Y in China to bolster sales, causing stress for domestic competitors
- AI-Powered Geospatial Analysis: Elevating Insights through Spatial Knowledge
- Review of the 2024 Isuzu D-MAX LS-U+: An Exciting Vehicle for Long Journeys
