What is better for the site, raster graphics (Gimp), or vector graphics (Inkscape)

Question

Design

To create a simple (I understand that both are needed for a complex one) site, which is better raster or vector?

Answer 1

Vector graphics can scale infinitely. I use a vector for UI elements (icons for example). So they will look the same on any screen resolution. A raster, when scaled, gives artifacts.
But there is a minus - a raster is rendered faster, and rendering a vector requires more resources.
Conclusion:
If rendering speed is critical, use a bitmap.
If you need to look beautiful on mobile and desktops - vector.

Answer 2

Among other things, vector graphics load faster because they weigh less. So for the site - definitely a vector.