The latest version of Optiscaler now reportedly brings big optimizations for AMD RDNA 2 GPUs when running games with the INT8 version of FSR 4.
Optiscaler New INT8 FSR 4 4.0.2 Version Brings Ghosting and Performance Optimizations for Radeon RX 6000 GPUs
Once again, AMD lagged behind third-party apps in bringing FSR 4 (FidelityFX Super Resolution) optimizations for previous-gen GPUs. It's embarrassing for a company not to bring its latest upscaling technology to previous-generation GPUs even though the hardware is able to support it. Although FSR 4 carries a substantial performance overhead, with regular optimizations, the problem would have been solved by now.
Popular upscaler swapping tool, Optiscaler, has once again surprised gamers by bringing the latest FSR 4 INT8 4.0.2b version, bringing major optimizations for RDNA 2 GPUs. RDNA 2, aka Radeon RX 6000 GPUs, can only support the INT8 version of FSR 4, which works quite well even though the performance regression is quite noticeable when compared to FSR 3.1. The FSR 4 INT8 DLL file was originally uploaded by AMD accidentally, and proved that both Radeon RX 6000 and RX 7000 GPUs can have stunning visuals with FSR 4.
The only drawback is that these GPUs can see anywhere from 10 to 20% of performance regressions with FSR 4. Optiscaler's latest FSR 4 INT8 4.0.2b version reportedly solves it, as mentioned in the release notes. The latest version was rolled out on GitHub, and the developer team announced that the new FSR 4 INT8 will now offer improved performance on the RDNA 2 GPUs. Moreover, it fixes ghosting on these GPUs. The developer team says that users won't need to modify the old drivers to make them work, and the latest drivers will be sufficient.
Previously, we used to see users enabling FSR 4 on RX 6000 and RX 7000 GPUs using workarounds, but Optiscaler made it pretty easy. We have a detailed guide on how you can use FSR 4 on these GPUs using Optiscaler, which will guide you step by step in the process. Optiscaler recently also added FSR 4 support for Vulkan titles, which is still missing from AMD. It appears that AMD isn't even interested in talking about bringing newer game technologies to older GPUs, which have left gamers disappointed.
About the author: Sarfraz Khan is a hardware reporter with a focus on PC components and the builder community. With years of experience writing about PC hardware and laptops, his work has been featured on several reputable technology publications. Sarfraz's hands-on experience is demonstrated through his first-person accounts of using and comparing different hardware configurations, providing practical and relatable insights for everyday users. His technical analysis is respected by peers in the enthusiast community and has been cited by specialized hardware sites such as Germany's Igor's Lab.
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