Optimus changes between integrated and discrete GPUs without any user input...
NVIDIA Optimus takes GPU changing tech out of the hands of the user making notebooks with integrated and discrete GPUs much easier to use.
Canonical has just made available for the Ubuntu 14.04 (Trusty Tahr) users a new NVIDIA Prime package, which should prove very useful for laptop owners.
NVIDIA Prime is a piece of software that is integrated by default in the Nouveau driver and that is used with NVIDIA Optimus technology to manage dual Intel and NVIDIA GPUs.
Some laptops feature both an Intel and an NVIDIA GPU, but switching bet