sometimes I do some simple animations in AE CC. Now I would buy a new GPU, and I'm curious which of these cards is better:
Gigabyte GV-N75TWF2OC-4GI with GeForce GTX 750 Ti and 4GB GDDR5 ( GIGABYTE - Graphics Card - NVIDIA - PCI Express Solution - GeForce 700 Series - GV-N75TWF2OC-4GI)
or ASUS STRIX GTX™ 950 2GB (https://www.asus.com/uk/Graphics-Cards/STRIX-GTX950-DC2OC-2GD5-GAMING/)
Simply, what is better for After Effects:
GTX 950 or GTX 750 Ti but with more vRAM?
Unless you're using the Nvidia 3d renderer for your comps, your graphics card will not make any difference to performance in After Effects.
Either card looks like they'll have decent OpenGL performance and so should work nicely if you decide to start using a 3D app (e.g. Cinema4D Lite which comes with AE).