How do win8 dual graphics cards switch to a standalone video card?

----law One

1, right click on the desktop, choose to configure the Exchange display card;

2, open to configure the interchangeable graphics interface, you can see the "recently opened applications", if you want to use this program to use high-performance;

Click "Save Electricity", change to show the following figure;

At this point, the use of high-performance stand-alone graphics, such as the Click and return to the power-saving mode, the last point of application can be.