>CUDA processing on the Titan should be significantly faster than a single 580.
Ah I was thinking of dual 580s. Can't wait to add a second Titan when they get cheaper.
>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
Consider me educated. I haven't played around with environment maps in AE raytrace much.