Lenovo G480 Laptop User Guide V3.0 (Microsoft Windows 8 Preinstalled) - Lenovo - Page 34

About NVIDIA® OptimusTM (on select models), game

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Chapter 2. Learning the basics About NVIDIA® OptimusTM (on select models Optimus is a GPU switching mechanism which automatically switches the active GPU to perform image-rendering tasks. If no graphics-intensive programs are running, the integrated GPU will be selected as the active GPU to preserve battery life; if you start high-definition movie playback or a 3D game, the image-rendering task is automatically switched by Optimus to the discrete GPU to produce high graphics performance. When Optimus is enabled, switching between integrated and discrete GPUs is performed automatically without user intervention. 30

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Chapter 2. Learning the basics
About NVIDIA
®
Optimus
TM
(on select models)
- - - - - - - - - - - - - - - - - - - - - - -
Optimus is a GPU switching mechanism which automatically switches the
active GPU to perform image-rendering tasks. If no graphics-intensive
programs are running, the integrated GPU will be selected as the active GPU
to preserve battery life; if you start high-definition movie playback or a 3D
game, the image-rendering task is automatically switched by Optimus to the
discrete GPU to produce high graphics performance.
When Optimus is enabled, switching between integrated and discrete GPUs
is performed automatically without user intervention.