CPU vs GPU

[braicodavid]

Why doesn't Revit use GPU ( my graphics card) to render images. whats the point of having a graphics card? 

I feel like Revit is really slow and lagging on my computer yet I have fairly high specs

[ToanDN]

It does to some extent, especially with 3d orbiting, shade/realistic visual style. Rendering? Not so much.

[braicodavid]

Can I change this? I don't understand why it's setup like this

[jeroen_vanmassenhove · Accepted solution]

You can not change this no, not in Revit at least. It's just the way Revit has been written that it uses CPU for rendering and GPU for orbiting like said earlier.

You can however render with other programs that do use the GPU, but not with Revit itself.

[rednova50]

Gpu cards are the best at simultaneously rendering things but cpu chips are best at rendering 1 instant of a thing. It’s like imagine Bruce Jenner (gpu) vs Usain Bolt (cpu). The gpu can do a lot of things the cpu can’t but there are certain tasks that a cpu would stomp the gpu in. 

Revit renders still images that you cannot move around at all, like 3DMAX or blendr. So it’s basically painting a picture. Whereas in unity or URE5 the images are not still and can hardly be considered images. They are webs of data that are interlinking and communicating through equations constantly - thus making it a gpu demanding operation. 

[jperkins1MXXNE]

so a platform based in 3D modeling was not written to take advantage of the more powerful and better focused processing of a GPU for standard operations ?

Forgive this crass assessment but that is just stupid. no wonder my high performance laptop overheats and locks up..