A report published October 2, 2026, described d4r’s experimental DLSS 4 and DLSS 4.5 Super Resolution support for Radeon RX 9000 targets under Linux. The project lists RDNA 4 builds, but says its own runtime and performance testing on that architecture remain unverified.
How d4r connects DLSS to Radeon hardware
d4r is a community project that adapts NVIDIA’s DLSS library for AMD GPUs; it is not affiliated with AMD or NVIDIA. Its documented route runs through Linux and Proton, using a chain that includes OptiScaler, d4r’s shim, NVIDIA’s NGX/DLSS library, a Wine CUDA bridge, ZLUDA and project-written RDNA kernels.
ZLUDA provides a CUDA-compatibility layer in that path. The project’s listed RDNA 4 targets also use native FP8 math for particular calculations. FP8 is an 8-bit number format; using it natively for those calculations does not remove ZLUDA or the other adaptation layers.
What the RX 9070 and RX 9060 checks establish
The reported checks used emulation for RX 9070 targets and compilation for RX 9060 targets. Those are different stages: compiling a target does not establish that it runs on a physical card, and emulation is not a real-card test.
The project says its own real-GPU testing was on a Radeon RX 7700 XT. Its documentation separately cites an external video reporting DLSS 4.5 running through d4r on a Radeon RX 9070 XT; that is distinct from the project’s own testing. d4r says its own RDNA 4 runtime and performance remain unverified.
Linux, Proton and Super Resolution are the stated scope
The described setup is for DirectX 12 games running through Linux and Proton, and its DLSS feature scope is Super Resolution. Frame Generation and Ray Reconstruction are outside that scope.
The project describes d4r as an experimental proof of concept, warns of visible artifacts in some games and models, and says everyday practicality is limited. It also describes one-to-one image-quality parity with GeForce RTX DLSS as unproven.
