One of the problems with the new MacBook Pro is that a user could not manually switch back and forth from the Intel HD graphics chip and the Nvidia GeForce GT 330M graphics card. The Intel HD graphics chip could be disabled so that the Nvidia GeForce GT 330M graphics card was the only one running. The problem was that consumed more power, and reduced battery life. Ideally a user should be able to switch back and forth manually. Anandtech has found a possible solution to this with gfxCardStatus, which is currently at version 1.6.1.

With version 1.6 comes the ability to manually change GPUs on the fly, whenever users desire. That’s right, you can manually change from the discrete GT 330M back to the more energy-efficient Intel HD graphics even from applications that otherwise cause an automatic switchover. This is a huge boon to mobile road warriors that want to wring every last minute out of their batteries if need be.

Via : gfxCardStatus 1.6 enables 2010 MacBook Pro GPU Switching @ Anandtech