Does sandy bridge switch to onboard graphics to save power?

[crazekid362]

In netbooks with intel atom processor and nvidia ion graphics it used Optimus technology to save battery life. Do sandy bridge desktop/notebook processors do this as well ?

 

[Metwinge]

Im sure SB gpu is always disabled when a discreet gpu is found on the system but most new Nvidia/AMD gpus are quite good on power in idle anyway.

 

[JackNaylorPE]

Check out Optimus ... some claim up to 39 hour battery life

http://newtechnotebook.com/tag/nvidia-optimus-technology
http://www.betanews.com/article/Lenovo-launches-Sandy-Bridge-ThinkPads-with-30-hour-battery/1298370998