0.0.6

Release notes (since 0.0.4.3)

New: the 310.9.16 small model, and a rebase onto upstream 0.0.6-linux-preview

The 310.9.16 nvngx_dlssnr.dll holds a second, smaller network (31 blocks and 76 layers instead of 71 and 152) and uses it by default. This build runs it on RDNA3 by adopting upstream's own small-model support, which works here without shader changes.

• The installer makes dlssnr-small.bin from the 310.9.16 DLL, installs both models and sets [Network] Model in dlssnr-amd.ini (small by default, original for the 310.8.0 model; applied after a game restart). --new-model and --old-model choose at install.
• There is no int4 mixed for the small model; int4 stays on the 310.8.0 model.
• It matches NVIDIA's own output of the 310.9.16 DLL: 49.36 / 49.45 / 50.58 dB at 1080p / 1440p / 4K, against 49.15 / 49.40 / 50.59 dB on RDNA4. Our earlier standalone lighter-network build scored 45.67 dB at 1080p because it padded 1080 to 1088; upstream pads to 1152, as the DLL does.
• The small model's history blend weight (0x3A23) is now its own, not the 310.8.0 model's.
• One plain layer with a folded downsample or upsample now runs as a persistent kernel, which the small model needs. It is about 10% faster than our earlier lighter build.

Also from upstream (0.0.5 and 0.0.6-linux-preview):

• the RenoDX style option and the NR Control menu
• faster ReShade routes (one-pass build, motion vectors read in place at full resolution)
• history restart fixes
• an optional per-frame noise seed (NoiseEveryFrame)
• reshade routes renamed reshade-feeder, reshade-feeder-vulkan and reshade-feeder-dx9

Performance (RX 7900 XTX, network time per frame, one pass)

PSNR is against NVIDIA's own output of the same model. There is no NVIDIA output at 720p, so that column is time only.

	720p	1080p	1440p	4K
310.8.0 model	9.10 ms (110 fps)	15.76 ms (63 fps)	25.95 ms (39 fps)	55.93 ms (18 fps)
PSNR	–	45.47 dB	47.71 dB	49.02 dB
310.8.0 + int4 mixed	8.11 ms (123 fps)	14.15 ms (71 fps)	23.65 ms (42 fps)	51.10 ms (20 fps)
PSNR	–	41.92 dB	43.36 dB	43.62 dB
vs 310.8.0 model	−11 %	−10 %	−9 %	−9 %
Small model (new default)	5.33 ms (188 fps)	9.62 ms (104 fps)	15.31 ms (65 fps)	32.33 ms (31 fps)
PSNR	–	49.36 dB	49.45 dB	50.58 dB
vs 310.8.0 model	−41 %	−39 %	−41 %	−42 %

fps is 1000 divided by the network time. The game's own frame cost is on top. The small model is both the fastest and the closest to NVIDIA; int4 mixed trades 3.5–5.4 dB for 9–11 % less time.

Today's figures are about 6% higher than the ones quoted in earlier notes (1080p was 14.8 ms for the 310.8.0 model). I timed the 0.0.4.3 code against this build on the same model in the same session, and they match within noise (15.4–15.6 ms against 15.6 ms), so this is the machine's state today, not a regression. Compare rows from the same table, not across releases.

Fixes

• Upstream's stand-alone nr_graph.cpp didn't compile: main used vit_first/vit_last without declaring them. It is fixed here, and the layer-hash checks that use that tool work again.
• The test scripts read the verification frames from docs/ngx-verification/310.8.0 after upstream moved them.

For developers

• linux/test/check_rdna3_small.py checks the small model, like the existing checks do for the others. check_rdna3.py and check_rdna3_int4.py still pass EXACT.
• bash fetch_deps.sh now also fetches Slang 2026.19 and the OptiScaler-NR source (both pinned by checksum), which the RenoDX shader build needs.

Upgrading

Re-run install.sh, with --dll pointing at the 310.9.16 nvngx_dlssnr.dll if you want the small model. Use --old-model to keep the 310.8.0 model; int4 mixed needs it. Your dlssnr-amd.ini settings are kept.