Optiscaler update brings AMD FSR 4 to RX 6000 with far less ghosting

Optiscaler’s update improves AMD FSR 4 on older Radeon cards

AMD is still delaying the rollout of FSR 4 for previous-generation graphics cards, but enthusiasts are continuing to fill the gap themselves. The Optiscaler software team has released a substantial update that makes FSR 4 work better on older GPUs.

Almost no ghosting

The developers say they have addressed the so-called ghosting issues on RX 6000-series cards, making the upscaler far more comfortable to use on older models. That said, they cannot promise ghosting will be completely eliminated everywhere, but it should be noticeably reduced.

Leaked FSR 4 build: INT8 instead of FP8

Optiscaler’s FSR 4 build is based on a leaked version of FSR 4 that uses INT8 rather than FP8 - a numeric format that is widely supported on older graphics cards. This is the key limitation that has stopped AMD from releasing FSR 4 on earlier generations.

Official support remains limited to Radeon RX 9000

Even so, the enthusiast community has demonstrated that it is possible to get everything working. Officially, FSR 4 remains exclusive to Radeon RX 9000.