Weird Artifacting In Some Games

[gruffcat]

https://youtu.be/WOsMZMtkTeU

Here's my build on pcpartpicker.
https://pcpartpicker.com/list/PV7V29

Don't really have many leads on this. I believe it could be overheating because of bad case fans or an abundance of dust inside the case but I just cleaned it pretty well last night. Video linked at the top is just an example. It happens really bad in some games, a little bit in some games, and not at all in others.

 

[Seregil Landry]

Have you overclocked anything on your PC? CPU, GPU, or RAM?

This is a fairly common issue especially when overclocking the GPU. If you have pushed it too far without enough voltage, or are just pushing the limits of your card, this could be the cause. I would recommend lowering your clock speeds on the GPU if this is the case. You may need to lower them even if they are at stock to take care of this issue. I'm not as familiar with the RX 480 as I am with the 580, but they do have some power delivery issues.

As always, make sure you have the current drivers for your RX 480, and make a clean install of them if you do not. Here's a link for a driver removal tool:
https://www.guru3d.com/files-details/display-driver-uninstaller-download.html
Here's a link for the current RX 480 driver:
https://www.amd.com/en/support/graphics/radeon-400-series/radeon-rx-400-series/radeon-rx-480

I hope that helps. Let us know.