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Asus Rog Strix Ryzen 9 stuttering - Is it possible work with 4k?
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filipe_aguilera  
#1 Posted : Friday, September 1, 2023 8:55:52 PM(UTC)
filipe_aguilera

Rank: Newbie

Groups: Registered
Joined: 9/1/2023(UTC)
Posts: 3
Brazil
Location: Sao Paulo
Hello everyone.
I have been having problems with a 4k project that has more than 5 external inputs (4k capture card and NDI4k). Vmix is unable to smoothly process the video from these inputs.
My CPU and GPU are only at 40% according to the Windows Task manager.

I have a ROG Strix Laptop
Ryzen 9
RTX 3080
32GB RAM
2TB SSD.

All settings in Nvidia are set to RTX (global settings in Windows) and high-performance power mode as well.

However, even with these settings, in 4k projects, I can't have more than 4 inputs because it starts to stutter, despite the low CPU and GPU usage.

Any tips?
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SuperBill  
#2 Posted : Sunday, March 24, 2024 7:07:46 AM(UTC)
SuperBill

Rank: Advanced Member

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Joined: 2/5/2021(UTC)
Posts: 38
Canada

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Did you resolve this?

Is this a laptop? Did you try Resizable BAR?
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Mile`S.  
#3 Posted : Thursday, April 18, 2024 5:43:39 PM(UTC)
Mile`S.

Rank: Newbie

Groups: Registered
Joined: 11/17/2020(UTC)
Posts: 2
Australia
Location: Sydney
Hi there,
I have the same problem with ASUS ROG Strix gaming laptop / CPU 3.3 GHz AMD Ryzen 9 6900HX with Radeon Graphics / Second GPU NVIDIA RTX3070 ti/
The issue with video capture lag started in March 2024 and I can not fix it (moving to the old driver did not help which surprised me a lot).
Does anyone have the same or similar issue? Can anyone help?
(No resizable bar) - Display is set on 1920x1080 60Hz.

Cheers
Miles
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Kayo33  
#4 Posted : Friday, August 14, 2026 8:46:04 AM(UTC)
Kayo33

Rank: Advanced Member

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Joined: 10/20/2023(UTC)
Posts: 154
France

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Was thanked: 18 time(s) in 14 post(s)
Originally Posted by: filipe_aguilera Go to Quoted Post
Hello everyone.
I have been having problems with a 4k project that has more than 5 external inputs (4k capture card and NDI4k). Vmix is unable to smoothly process the video from these inputs.
My CPU and GPU are only at 40% according to the Windows Task manager.

I have a ROG Strix Laptop
Ryzen 9
RTX 3080
32GB RAM
2TB SSD.

All settings in Nvidia are set to RTX (global settings in Windows) and high-performance power mode as well.

However, even with these settings, in 4k projects, I can't have more than 4 inputs because it starts to stutter, despite the low CPU and GPU usage.

Any tips?




Which capture cards are you using?
If it's 4K30p, it's likely USB 3.0,
so it's probably a USB bandwidth issue.
On the ASUS ROG Strix, there are only three USB-A 3.0 ports and one 10 Gbps USB-C port;
the two USB ports on the left side of the laptop likely share the same controller, so you should only plug in one capture card there.
Try connecting a third one to the USB-A port on the back of the laptop,
and also try using a 10 Gbps USB-C hub (with external power and a VIA VL822 chip) with two USB capture cards.
That will reveal the limitations of your laptop's USB ports.
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