CUDA 8.0 is compatible with my GeForce GTX 670M Wikipedia says, but TensorFlow rises an error: GTX 670M's Compute Capability is < 3.0
CUDNN and Tensorflow require a GPU which has a compute capacity of 3.0 at least: not only the CUDA version must take account of this CC, but also these both programs.

Indeed: https://stackoverflow.com/questions/38542763/how-can-i-make-tensorflow-run-on-a-gpu-with-capability-2-0/38543201#38543201