Present in 14.04. jockey was used in 12.04.
Command line interface for the "Additional drivers" dialog.
List possible drivers for present hardware:
sudo ubuntu-drivers devices
Sample output from an NVIDIA GPU:
== /sys/devices/pci0000:00/0000:00:01.0/0000:01:00.0 ==
vendor : NVIDIA Corporation
modalias : pci:v000010DEd00000DEFsv000017AAsd000021F4bc03sc00i00
model : GF108M [NVS 5400M]
driver : nvidia-304 - distro non-free
driver : nvidia-331-updates - distro non-free
driver : nvidia-304-updates - distro non-free
driver : nvidia-331 - distro non-free recommended
driver : xserver-xorg-video-nouveau - distro free builtin
You can then install or uninstall the drivers with apt-get: nvidia-304, nvidia-331, etc. are the actual package names.