Question Using RX for rendering and GTX for video output

Jun 14, 2025
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Hello.
I have and RX 6750 XT, and I recently got a GTX 1060 6GB from my friend for only 40€.
Cpu r5800x.
Ram 32 gb.
Mobo msi mag b550 tomahawk.
I planned to use the GTX for lossless scaling and the RX for game rendering, but when I tested the system without opening lossless scaling, I selected the RX as the rendering card or high performance card the RX on windows, and I did this even for the game exe (in this case is the last of us part 2). The problem is that I'm getting 40 fps (almost everything maxed, I'm playing on 1080p), before putting the gtx in my system I used to get around 85 or 90 fps, but not 40 fps.
It seems like windows is still using the gtx as output and rendering, even if I selected to use the RX.
Just for testing I swapped back the DP cable to the RX and all the games are still using the GTX...
Maybe is there an option on NVDIA panel?
I've installed the drivers on both cards.
What am I doing wrong?
 
Question: PSU - make, model, wattage, age, condition (original to build, new, refurbished, used)?

= = = =

First, check the full hardware requirements for the apps and games. Ensure that the installed hardware matches or exceeds those hardware requirements.

Second, verify that the correct drivers are installed.

Drivers should be manually downloaded directly from the manufacturer's website. Installed and configured as required.

No third party installers or tools.

Be careful about driver sources. Just because the manufacturer's name appears in some listing and/or the URL does not mean that the source website is actually the manufacturer.

Use Device Manager to check/confirm the GPU's Properties (Tabs = General, Driver, Details, Events, Resources).

Open the Events tab - for details regarding activity timestamps and descriptions.

And you can use Task Manager, Resource Monitor, and Process Explorer (Microsoft, free) to observe system performance while using the GPU's. Look for what changes when performance drops. Use all three tools but only one tool at a time.

FYI:

https://learn.microsoft.com/en-us/sysinternals/downloads/process-explorer

Take your time, be methodical, watch carefully.
 
Question: PSU - make, model, wattage, age, condition (original to build, new, refurbished, used)?

= = = =

First, check the full hardware requirements for the apps and games. Ensure that the installed hardware matches or exceeds those hardware requirements.

Second, verify that the correct drivers are installed.

Drivers should be manually downloaded directly from the manufacturer's website. Installed and configured as required.

No third party installers or tools.

Be careful about driver sources. Just because the manufacturer's name appears in some listing and/or the URL does not mean that the source website is actually the manufacturer.

Use Device Manager to check/confirm the GPU's Properties (Tabs = General, Driver, Details, Events, Resources).

Open the Events tab - for details regarding activity timestamps and descriptions.

And you can use Task Manager, Resource Monitor, and Process Explorer (Microsoft, free) to observe system performance while using the GPU's. Look for what changes when performance drops. Use all three tools but only one tool at a time.

FYI:

https://learn.microsoft.com/en-us/sysinternals/downloads/process-explorer

Take your time, be methodical, watch carefully.
The pc it's a new build (October 2024).
I've got the GTX 1060 from my friend (it's a zotac mini).
I have a seasonic b12 bc-850 (850w psu).
The only used part on my build is the GTX, the rest is all new.
The problem is, that for some reason windows keeps using the gtx as the main rendering card (even if I selected as the high performance gpu the rx 6750 xt, and I've also done it for the separate apps), this makes me thinking that maybe the issue is in the nvdia panel, and somehow it overwrites the windows settings, but I'm literally new to NVDIA, and I tried to search for those settings but nothing...
 
Right click a blank area of your desktop.

A menu should appear from which you can select "Show more options" and then the "Nvidia Control Panel".

Check the applicable configuration settings.

Another place to look is in Task Manager > Startup. Determine if there are any NVIDIA apps or other video related apps being launched at Startup.

Also look in Task Scheduler: some video related activity may trigger an app or tool.

And, take a look at any game related configurations: e.g., "Game Bar".

Immediate objective being to first find any related configuration settings, understand what those settings actually do, and if some change in those settings is applicable, viable, and actually resolve the problem.
 
Right click a blank area of your desktop.

A menu should appear from which you can select "Show more options" and then the "Nvidia Control Panel".

Check the applicable configuration settings.

Another place to look is in Task Manager > Startup. Determine if there are any NVIDIA apps or other video related apps being launched at Startup.

Also look in Task Scheduler: some video related activity may trigger an app or tool.

And, take a look at any game related configurations: e.g., "Game Bar".

Immediate objective being to first find any related configuration settings, understand what those settings actually do, and if some change in those settings is applicable, viable, and actually resolve the problem.
Good news, I fixed.

I removed any possible driver with DDU, reverted any graphical settings on my pc, and reinstalled every driver, and then it worked.

Another issue might be that for the rx drivers I used Radeon slimmer, and maybe I removed something that broke everything with the NVDIA drivers...

Thx for the tips and for the immediate reply, have a good weekend.