Question for people that use 16GB+ VRAM graphics cards

[AnnualTomato9]

Hi, people. There's something I'm wondering about and I wonder if someone here can help me out:
painting in Substance Painter is really smooth when I set the texture size to 2k, but when I upscale to 4k my 8GB graphics card starts to struggle greatly.

So I'm planning to switch to a 16GB+ graphics card, but I'd like to know first: does it make painting at 4k any smoother? Or is painting at 4k always gonna be choppy, no matter how much VRAM I have?

[jesse.art]

I can't answer your question directly but I can say that I have a graphics card with 32 GB vram and it will struggle with 4k when I reach a certain number of layers-which is really disappointing.