🎉 UniFab RTX RapidHDR AI: NVIDIA RTX HDR and Video Super Resolution！

Ctrl+Y · 2025-09-04T02:51:38+00:00

Dear UniFab Community Users, 🎉We are excited to proudly introduce our brand-new feature — Video RTX RapidHDR AI. Leveraging the powerful AI computing capa...

Alex_Videoman

Nice speed indeed compared to the other models in AI HDR, but what are the trade-off here?

Could you make a table with the 4 models now so that we can compare them and one can choose which one is best for his needs?

sismotik2182737

Alex_Videoman Esta actualización no da buenos resultados la versión anterior lenta muy lenta pero los resultados era visible se notaba mejora respecto al original. Con esta actualización la original es superior a los resultados, espero que el equipo de UNIFAB solucione proto esto por que de verdad ya uno desanima a dejar el programa y buscar otra solución. Guardare mi ultimo demo de RTX para ver si lo arreglan.

Ctrl+Z

Alex_Videoman
HDR Upconverter:
Focuses on converting SDR video to HDR and Dolby Vision, aiming for outstanding HDR image quality.
Note: HDR Upconverter does not support super-resolution upscaling. For resolution enhancement, Autopilot features need to be used in conjunction.
RTX RapidHDR AI:
Integrates AI super-resolution upscaling, artifact removal, and SDR-to-HDR conversion (does not support Dolby Vision), and is deeply optimized for NVIDIA RTX GPUs. It offers high-speed processing and multi-dimensional image quality enhancement, suitable for users requiring efficient processing and multiple enhancements.
(Please provide details of the other two models if applicable)

Alex_Videoman

Also, there is a small UI issue when adding a 4K movie, it keeps saying 3840×2160 (origin) and still list 4K as option, would be nice to say 4K and not list it again, right?

Alex_Videoman

Also it would be nice to add the option to use it in autopilot, as well as adding compressor into the workflow…

Alex_Videoman

sismotik2182737 I believe you are discussing about the speed with an RTX50 series, right? I am using a 4070Ti which is working fine, we all know the issues of UniFab with the 50 series, and hopefully they will fix these as well as the Dolby Vision bug they have one day

Ctrl+Z

sismotik2182737
Thank you for your feedback. We recommend using an HDR-supported device with HDR enabled to compare the results. The comparison images you uploaded may not fully reflect the actual video playback quality. We suggest checking your HDR settings and re-experiencing the video at your convenience, which we believe will provide a different visual impression. We will continue optimizing to deliver better image quality for you.

Ctrl+Y

Alex_Videoman The 50 series graphics card thread has been published. We expect to release it at the end of September or early October. You can move to the 50 series graphics card thread for discussion.

Alex_Videoman

It would be interesting to see also a comparison with the 4 different levels of Nvidia AI enhancer of DVDFab in a table as well…..

Ctrl+Y

sismotik2182737 Are you viewing the video on a device that supports HDR?

sismotik2182737

Ctrl+Y Si estoy con todo el equipamiento mas actual no hay ninguna mejora de calidad en los video con la nueva función RTX, espero solucionen esto.

Alex_Videoman

Ctrl+Y I was just replying to sismotik here

But I’d like to see a comparison table :-)

Ctrl+Z

sismotik2182737
The optimization for NVIDIA 50 series graphics cards is handled by a dedicated low-level tuning team, while product rollout and release are managed by a separate team. These two teams operate independently, so the development progress related to the 50 series graphics cards will not be affected. We have already published a post detailing the current progress, and we will invite interested users to participate in the Beta testing phase. We encourage everyone to stay tuned and get involved.

Ctrl+Z

sismotik2182737

First of all, thank you very much for your attention and use of the new features. Regarding the optimization progress for NVIDIA 50 series GPUs, we have responded previously, so I won’t repeat it here. It is worth noting that utilization optimizations for the 50 series will be prioritized on the upscaler.

Comparing RTX RapidHDR AI and the upscaler, the Quality Optimized and Texture Enhanced modes in the upscaler deliver superior performance in super-resolution upscaling. Meanwhile, RTX RapidHDR AI’s advantage lies in converting SDR video to HDR while also supporting super-resolution upscaling. However, purely in terms of super-resolution upscaling quality, the upscaler performs better.

Please note that since RTX RapidHDR AI converts SDR videos to HDR, if your display does not support HDR or HDR is not enabled, some players may show a dim or grayish image. We recommend checking your display settings or using a player like VLC, which can maintain SDR colors on devices that do not support HDR, thereby avoiding dimming issues.

Additionally, I will share with you a test comparison image showing the playback effect on an HDR TV for your reference.

sismotik2182737

Ctrl+Z Podrían mejorar RTX poner de UPSCALER aparte de que solo realice HDR que también mejore la resolución, o sacar otro producto RTX UPSCALER yo compraría sin dudar eso.

Alex_Videoman

Ctrl+Z Thank you
A few more comments and follow up:

HDR Upconverter does not support Dolby Vision as we all know till you fix the bug so this is not a factor here
could you post some screenshots of the 5 different models so we can see the difference: RTX HDR, AI HDR (fast model, FHD, QHD and 4K UHD)?
-could you also compare with the “optimized” Nvidia HDR 4 levels of DVDFab? And screenshots?
if you keep the initial resolution, I guess it does not do any upscaling right? It would just di artifact removal and HDR correct?

Alex_Videoman

First bug and a big one.
I input an mkv file which I want to upscale 4k HDR, and output mp4, so nothing fancy here.
The output is an mp4 file, but not in 4k and not in HDR, it was just converted to mp4 HEVC.

Very nice bug

Here is the original movie characteristics
General
Unique ID : 64394437847396632368669784379982506101 (0×3071EAE881016A4AFF0C7B726BB66875)
Complete name : C:\Users\admin\Desktop\Les Règles De L’art (2025).mkv
Format : Matroska
Format version : Version 4
File size : 4.55 GiB
Duration : 1 h 30 min
Overall bit rate : 7 189 kb/s
Frame rate : 25.000 FPS
Title : Les Règles De L’art
Encoded date : 2025-09-03 18:53:00 UTC
Writing application : mkvmerge 94.0 (‘Initiate’) 64-bit
Writing library : libebml v1.4.5 + libmatroska v1.7.1

Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4
Format settings : CABAC / 5 Ref Frames
Format settings, CABAC : Yes
Format settings, Reference frames : 5 frames
Format settings, Slice count : 8 slices per frame
Codec ID : V_MPEG4/ISO/AVC
Duration : 1 h 30 min
Bit rate : 6 643 kb/s
Width : 1 916 pixels
Height : 800 pixels
Display aspect ratio : 2.40:1
Frame rate mode : Constant
Frame rate : 25.000 FPS
Color space : YUV
Chroma subsampling : 4:2:0 (Type 2)
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.173
Stream size : 4.20 GiB (92%)
Default : Yes
Forced : No
Color range : Limited
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709

Audio #1
ID : 2
Format : AC-3
Format/Info : Audio Coding 3
Commercial name : Dolby Digital
Codec ID : A_AC3
Duration : 1 h 30 min
Bit rate mode : Constant
Bit rate : 384 kb/s
Channel(s) : 6 channels
Channel layout : L R C LFE Ls Rs
Sampling rate : 48.0 kHz
Frame rate : 31.250 FPS (1536 SPF)
Compression mode : Lossy
Stream size : 249 MiB (5%)
Title : VFF
Language : French (FR)
Service kind : Complete Main
Default : Yes
Forced : No
Dialog Normalization : -24 dB
compr : -0.28 dB
cmixlev : -3.0 dB
surmixlev : -3 dB
ltrtcmixlev : -3.0 dB
ltrtsurmixlev : -3.0 dB
lorocmixlev : -3.0 dB
lorosurmixlev : -3.0 dB
dialnorm_Average : -24 dB
dialnorm_Minimum : -24 dB
dialnorm_Maximum : -24 dB

Audio #2
ID : 3
Format : AAC LC
Format/Info : Advanced Audio Codec Low Complexity
Codec ID : A_AAC-2
Duration : 1 h 30 min
Bit rate : 159 kb/s
Channel(s) : 2 channels
Channel layout : L R
Sampling rate : 48.0 kHz
Frame rate : 46.875 FPS (1024 SPF)
Compression mode : Lossy
Stream size : 103 MiB (2%)
Title : VFF AD
Language : French (FR)
Default : No
Forced : No

Here is the output:
General
Complete name : C:\Users\admin\Documents\UniFabAI\UniFab\Output\RTXRapidHDR\Les Règles De L’art (2025).mp4
Format : MPEG-4
Format profile : Base Media / Version 2
Codec ID : mp42 (mp42/isom/hvc1)
File size : 4.59 GiB
Duration : 1 h 30 min
Overall bit rate mode : Variable
Overall bit rate : 7 260 kb/s
Frame rate : 25.000 FPS
Title : Les Règles De L’art (2025)
Recorded date : 2025
Encoded date : 2025-09-07 01:22:44 UTC
Tagged date : 2025-09-07 01:26:37 UTC
Writing application : UniFab 3027
Cover : Yes
Cover type : Cover

Video
ID : 1
Format : HEVC
Format/Info : High Efficiency Video Coding
Format profile : Main 10@L4@High
Codec ID : hvc1
Codec ID/Info : High Efficiency Video Coding
Duration : 1 h 30 min
Bit rate : 6 711 kb/s
Width : 1 916 pixels
Height : 800 pixels
Display aspect ratio : 2.40:1
Frame rate mode : Constant
Frame rate : 25.000 FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 10 bits
Bits/(Pixel*Frame) : 0.175
Stream size : 4.24 GiB (92%)
Writing library : HEVC Coding
Encoded date : 2025-09-07 01:22:44 UTC
Tagged date : 2025-09-07 01:26:37 UTC
Color range : Limited
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709
Codec configuration box : hvcC

Audio #1
ID : 2
Format : AC-3
Format/Info : Audio Coding 3
Commercial name : Dolby Digital
Codec ID : ac-3
Duration : 1 h 30 min
Bit rate mode : Constant
Bit rate : 384 kb/s
Channel(s) : 6 channels
Channel layout : L R C LFE Ls Rs
Sampling rate : 48.0 kHz
Frame rate : 31.250 FPS (1536 SPF)
Compression mode : Lossy
Stream size : 249 MiB (5%)
Title : French (ac3 5.1)
Language : French
Service kind : Complete Main
Default : Yes
Alternate group : 1
Encoded date : 2025-09-07 01:22:44 UTC
Tagged date : 2025-09-07 01:26:35 UTC
Dialog Normalization : -24 dB
compr : -0.28 dB
cmixlev : -3.0 dB
surmixlev : -3 dB
ltrtcmixlev : -3.0 dB
ltrtsurmixlev : -3.0 dB
lorocmixlev : -3.0 dB
lorosurmixlev : -3.0 dB
dialnorm_Average : -24 dB
dialnorm_Minimum : -24 dB
dialnorm_Maximum : -24 dB

Audio #2
ID : 3
Format : AAC LC
Format/Info : Advanced Audio Codec Low Complexity
Codec ID : mp4a-40-2
Duration : 1 h 30 min
Bit rate mode : Variable
Bit rate : 159 kb/s
Maximum bit rate : 247 kb/s
Channel(s) : 2 channels
Channel layout : L R
Sampling rate : 48.0 kHz
Frame rate : 46.875 FPS (1024 SPF)
Compression mode : Lossy
Stream size : 103 MiB (2%)
Title : French (aac 2.0)
Language : French
Default : No
Alternate group : 1
Encoded date : 2025-09-07 01:22:44 UTC
Tagged date : 2025-09-07 01:26:35 UTC

Image
Type : Cover
Format : PNG
Format/Info : Portable Network Graphic
Compression : Deflate
Format settings : Linear
Muxing mode : moov-meta-covr
Width : 636 pixels
Height : 266 pixels
Display aspect ratio : 2.39:1
Color space : RGBA
Bit depth : 8 bits
Compression mode : Lossless
Stream size : 288 KiB (0%)