One place where more VRAM helps a lot is when you have an animated/changing environment map layer. When you have little VRAM, there's a lot of time wasted uploading and clearing textures to and from the VRAM; with a lot of VRAM, more can be held on the GPU at once.

 

Also, plug-ins like Element 3D that rely on the GPU perform better (and crash less) with more VRAM.

 

 

From: After Effects Mail List [mailto:AE-List@media-motion.tv] On Behalf Of Rendernyc

 

I have seen significantly less errors in ae and pr as well as crashes due to low VRAM after switching from 2gb to 4gb.