The 980TI never really worked with Raytrace 3D even on PCs, so you are probably out of luch. feel free to experiment with the usual stuff of enabling experimental support and adding the card to the relevant .txt file. Maybe it will magically show up.
What version of After Effects are you using?
Szalam, I use After Effects CC 14.1
When you say you "can't use" the card with the ray-traced renderer, could you be a bit more specific? I mean, even though Adobe considers the ray-traced renderer obsolete, it would be nice if you could still use it if you need to.
What, exactly, are you trying to do with it?
Sorry to hear of your troubles. Did you update the software yet? Does the new version detect the GPU? Let us know.