Big problems with 9070 XT

OTBW wrote on 4/6/2025, 2:16 AM

Hi all. I just got a 9070 XT after my RTX 3080 died. Running latest version of 22, windows 11, ryzen 7 and 32gb ram. Installed the new card and Vegas Pro has been having constant issues. Slow to respond, the odd crash and just nowhere near as smooth. It will preview videos smoothly on any setting, but moving on the timeline and general use is slow and it will hang regularly. I tried to render a video and get constant glitches and errors in the render. This is generally footage glitching/blurring/looping for periods and also rendering at 0mb. Tried multiple bit rates but hasn't helped. I remember on an older Vegas Pro and graphics card I could only render at a max 50,000,000kb or similar things would happen at rendering, but I don't want to drop in quality when my sources are 100+.

I did the DDU on the nvidia drivers and running latest amd drivers. Anyone able to give any insight? I'm trying to render on my old laptop now and seeing if that has any issues too. Stupidly frustrating, let alone when I have videos to release!

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John-Callahan wrote on 6/16/2025, 2:19 PM

@Reyfox - I tried your project setting file, which is not much different to the extra affects I added as you mentioned. Using your affect in the timeline and the default template [MAGX AVC/AAC MP4 - Internet UHD 2160p 25 fps (AMD VCE)] I get the same problem results (lots of stuttering/repeated frames). Just to be clear we are using the same default settings, find below the Video and Project settings of the template I use:

I have updated my signature for my system settings

Reyfox wrote on 6/16/2025, 3:08 PM

@John-Callahan here are my settings.

John-Callahan wrote on 6/16/2025, 3:34 PM

@Reyfox - Ok, so yours are the same as mine, as I would expect if using the default template. One last thing for me to try would be to try your Vegas Preferences. If you could export your preferences (Options\Export Preferences), then I can try importing them and give it another try. I would have to change the use of the graphics card to my own, otherwise use anything specific you have configured. If that still does not help me, then it must be something to do with this newer AMD GPU. In the end I am satisfied with my work around of using the 'Low Latency' option

Reyfox wrote on 6/16/2025, 3:53 PM

@John-Callahan I am sending a link for my preferences in PM.

Howard-Vigorita wrote on 6/16/2025, 6:30 PM

@John-Callahan I tried your clips rendering default AVC-VCE w/vp22 b250 using an amd 6900xt gpu. I see allot of stuttering in the render if I give them 3sec crossfades into one another. But same as you, no stuttering if I set the preset to low latency.

Looks like the low latency setting creates the smallest file by using only a single gop for the whole thing. I also tried default HEVC-VCE and that was clean as a whistle with a more edit-friendly gop histogram : 6 @ 25 : 1 @ 97 : 1 @ 73 : 2 @ 25 : 1 @ 49 : 1 @ 25 : 1 @ 121 : 3 @ 25 : 1 @ 193 : 60 @ 25. I started with amd driver v24.5.1 then upgraded to 25.6.1 to see if that changed anything and it did; AVC stuttering was worse after the 1st crossfade but almost gone after the 2nd.

I graded the 1st 2 clips lightly with cgp to get a rough alignment of the highs and lows but the 3d clip changed exposure allot as the camera moved and zoomed so I took a stab at enveloping cgp to even that out a little...

Here's the test project I created:
https://drive.google.com/file/d/1ydVpY1iL7aLWsQFMJFSwbfmGOk6pe_gg/view?usp=sharing