d4r lists experimental RDNA 4 build targets for DLSS Super Resolution on Radeon RX 9000 under Linux. The project says runtime and performance on physical RDNA 4 cards remain unverified; its RX 9060-series targets are compile-only.
d4r lists experimental DLSS targets for Radeon RX 9000 under Linux
The community project adapts NVIDIA’s DLSS Super Resolution library for Windows games running through Proton on Linux. Its RDNA 4 target list includes Radeon RX 9070 XT, RX 9070, RX 9070 GRE, Radeon AI PRO R9700, RX 9060 XT, and RX 9060. Those entries describe build targets, not confirmed gameplay on those physical cards.
The project identifies RX 7700 XT as a tested physical GPU. Its stated status for RX 9070-series cards is that runtime and performance remain unverified on physical hardware; RX 9060-series support is compile-only.
How d4r connects DLSS and Radeon
d4r is an unofficial community project, not an AMD or NVIDIA product. Its compatibility path combines NVIDIA’s DLSS library with a d4r shim, a Wine CUDA bridge, ZLUDA, patched vkd3d-proton, and selected native Radeon kernels. ZLUDA translates CUDA work so it can run on AMD hardware, while the project’s kernels replace selected DLSS network operations.
The setup is for Windows games using Direct3D 12 through Proton. In practical terms, d4r builds a chain of compatibility software around DLSS; it is not native, vendor-supported DLSS for Radeon. Its stated feature set covers Super Resolution, including DLSS 3 CNN preset E, DLSS 4 transformer preset K, DLSS 4.5 transformer preset M, and experimental preset L. It does not support Frame Generation, Ray Reconstruction, or DLSS 5.
What changes between RDNA 3 and RDNA 4
The project handles FP8—the eight-bit floating-point format used in some calculations—differently for its two architecture targets. It widens FP8 operations to FP16 for RDNA 3, while native FP8 math is enabled by default for listed RDNA 4 targets.
| Architecture | d4r’s FP8 handling |
| RDNA 3 | Widens FP8 operations to FP16 |
| RDNA 4 | Native FP8 math enabled by default for listed targets |
That build distinction describes how the project handles calculations; it does not establish game performance on RDNA 4 hardware.
What has been demonstrated on Radeon
The project reports testing DLSS 4.5 preset M on an RX 7700 XT in SILENT HILL Townfall at 2560×1440 output: 49.3 frames per second in Quality, 58.0 in Balanced, 69.0 in Performance, and 92.2 in Ultra Performance. The same walk at native 2560×1440 with the game’s TSR at 100% ran at 49.1 frames per second.
A separate external demonstration showed d4r running on an RX 7900 XTX in Cyberpunk 2077 at 480p Ultra Performance. Its creator reported about 130 frames per second with DLSS 4.5 and roughly 140–150 with FSR 4.1.1B; those figures come from one creator’s test, not a standardized benchmark.
