NVidia RTX 5090 10bit 4:2:2 support in Premiere Pro

[Junice2k]

Hello, 

I heard that Premiere Pro supports 10bit 4:2:2 video encoding acceleration of RTX 5090. However, I don't see any encoding performance difference between RTX 5090 and RTX 3090 with my 14mins Canon R5 8K Raw video footage. 
It takes almost 3hours to encode with RTX 5090 as well. 
I would like to know about this issue. 

[Carlos Ziade]

Make sure you have everything setup for GPU acceleration, renderer,

export settings, and GPU acceleration on Media Encoder if exporting there.

You should not be on Software Only encoding. What formats are you encoding to?

[Junice2k]

I chose Hardware encoding, and tried to export to MP4 

[Ann Bens]

If it were not supported, you would not be able to set it to Hardware encoding.

[Junice2k]

How can I check if it is supported or not n very detail? 

[R Neil Haugen]

They've changed the way this "appears" in the options menus now. So if your hardware can do it, the option to turn that off is grayed out. Which seems backward to many users but that's what it does.

[jamieclarke · Accepted solution]

Hi @Junice2k - 10bit 4:2:2 acceleration  with Nvidia Blackwell is still in beta.  Please check the current beta version 25.3.0 for this feature.  Here is an article Now in Beta: Improved support for NVIDIA Blackwell Architecture