dpkg -l | grep -i nvidia
ii  bbswitch-dkms                               0.8-3ubuntu1                                  amd64        Interface for toggling the power on NVIDIA Optimus video cards
ii  libcuda1-340                                340.98-0ubuntu0.16.04.1                       amd64        NVIDIA CUDA runtime library
ii  nvidia-340                                  340.98-0ubuntu0.16.04.1                       amd64        NVIDIA binary driver - version 340.98
ii  nvidia-opencl-icd-340                       340.98-0ubuntu0.16.04.1                       amd64        NVIDIA OpenCL ICD
ii  nvidia-prime                                0.8.2                                         amd64        Tools to enable NVIDIA's Prime
ii  nvidia-settings                             361.42-0ubuntu1                               amd64        Tool for configuring the NVIDIA graphics driver