Toshiba Qosmio G20 (PQG21) - Manual (Page 199)

User’s Manual B-7
Display Controller and Modes
PowerMizer
PowerMizer is a graphics processor installed on this computer. The
performance of PowerMizer can be configured in three ways. To define the
performance, select the menu options shown below:
Display Properties -> Settings -> Advanced -> GeForce Go 6600 ->
GeForce Go 6600 -> nView Display Settings -> PowerMizer
The graphics processor offers three options, Maximum Power Savings,
Balanced and Maximum Performance, in each of the AC power mode and
battery power mode.
(Multiple Monitors) and NVIDIA GeForce Go 6600 P...
The setting for Maximum Performance vary depending on whether you are
configuring the system for AC power mode or battery power mode.