I have tried to import tensorflow-gpu and I'm getting the same error with different versions of CUDA and cuDNN. My GPU is compatible with CUDA and I have no problems installing but when I try to import tensorflow-gpu I got this:
ImportError: DLL load failed: No se puede encontrar el módulo especificado.
Failed to load the native TensorFlow runtime.
Tensorflow version: 1.11 CUDA version: 10 cudNN: 7.3.1
I also tried cudaNN 5.0 because I saw on a forum that worked for some people.