Procedural vs PBR material hardware efficency

[froyect]

Hi!

I know that this comparison has to be done with a lot of elements in mind. But I just want to know in general which one is more efficient to calculate for the hardware.

Setting a PBR material is for sure easier and faster than creating a procedural one with the nodes embedded on KeyShot. But for computional purposes I believe procedural materials are more efficient, as Keyshot doesn't have to re calculate an entire image.

Those are my toughts, but I want to know is there an objective answer to this topic.