This driver adds support for
NVIDIA_DEV.1617 = "NVIDIA GeForce GTX 980M"
NVIDIA_DEV.1618 = "NVIDIA GeForce GTX 970M"
Note: these GPUs have other device IDs as those we mentioned 6 months ago:
NVIDIA_DEV.13D7 = "NVIDIA GeForce GTX 980M"
NVIDIA_DEV.13D8 = "NVIDIA GeForce GTX 970M"