Let's talk about Render Scaling - Why? Advantages? Disadvantages?

[SvenZ]

A little tip to improve graphics/performance

Since launch, I’ve been running the sim at 1080p with 130-160% scaling. What I have just discovered, however, is that by running the sim at 4K with 60-70% scaling, I’m getting similar performance with crisper textures. I think this could be thanks to the new TAA introduced in Update 5. If you’re running a 1080p display, you can enable 4K by going into your Nvidia Control Panel and enabling the 4x DSR factor. Not sure about AMD, sorry. Hope this was helpful.

Second post For those who did not experience any change on 1080p: don’t forget to set the higher resolution IN the game!

And what they observe there is the advantage of SecondaryScaling vs just using RenderScale (PrimaryScaling)