How to switch between two graphics cards in a notebook

At present, many laptops support dual-card switching function , what is a dual-card switch, simply said that the notebook also has a separate graphics and the latest SNB processor with the core graphics cards, the two can be based on computer application needs, to switch. The dual SIM card switch is different from the APU dual-card fire, APU is the implementation of the independent graphics and Apu core graphics simultaneously, but for the Intel SNB processor with the core graphics card can not be used in conjunction with the independent graphics card, so there is the emergence of dual-card switching technology, when the application of large programs, we should choose independent graphics, The common application uses CPU core video card, this involves the switching function.

Now the new notebook as long as there is a separate graphics are basically dual graphics card switching, the difference is Nvidia and AMD's graphics card because the driver is different, so the switching mode is not the same, if you need to customize some programs to run when the independent video card, At some point in order to ensure the battery's endurance and lower calorific value is only the use of the core graphics card, you need to set up in the Control Panel, you can not use the default settings, the following author for you to detail the next two graphics how to switch.

Note: Whether it is NVIDIA&AMD graphics technology, the implementation of the computer can automatically quickly switch different graphics output, only support the Windows VISTA/7 system.

If it is by default, it is usually programmed to add GPU acceleration to wake up the independent graphics, such as Adobe's large number of software, 3D games, in many cases, some of our running tools do not have the ability to wake up the independent graphics, You need to specify in the driver control Panel of the video card that the program needs to be run using a stand-alone video card for running a separate video card.

The following is an explanation of the graphics driver Control Panel for NVIDIA and AMD-dual video card switching:

　　Nvidia dual graphics switching settings:

The Optimus technology developed by Nvidia does not require user intervention, the system automatically determines the current task, and then chooses the video card to perform the task. Of course, if the driver is not recognized correctly, or some programs do not need to use a stand-alone video card, but the user wants to run with a stand-alone video card can manually set up the program to force the use of stand-alone graphics, but this will increase the burden of the notebook's heat dissipation, resulting in high heat dissipation fan result is Frequent cleaning of dust is required.

How to set up a stand-alone video card for running a 3D program:

1. Right-click on the desktop and select Nvidia Control Panel on the menu that pops up:

2, and then eject the Nvidia set menu, choose to manage 3D settings, you will see the global use Set or the only option, select the independent video card, the system performs tasks will use the video card you choose:

Video card settings for individual programs

1, choose to add their own need to set the program, such as we need to set KMP for High-performance graphics card, select this program.

2, select the program needs to use the Independent graphics card:

3, there is a more convenient function, is for each program, you can choose at any time it calls which video card.

For a desktop program click the right mouse button:

4, if the right key does not provide the ability to select the video card, you need to do the following settings:

Or go back to the 3D settings interface, select the view, and hook up the last item in the Drop-down menu, "Add the ' use graphics processor ' to the context menu" before:

5, and then back to the program, click the right button, there will be an option, let you choose whether the program is to use a single display or set

　　Dual graphics card switching method using AMD graphics:

Right-click the desktop to enter the "Configure the Swap display card" option

In the switching interface we can see the display core types that are available for switching, single display with "High-performance GPU", set display with "power-saving GPU" said, from the interface options we can see the switch between the display and the set is actually the performance and effectiveness of the switch between love you, Independent provides a strong performance but also large power consumption, Although the performance of the set shows there is still a gap with the single display, but compared with the power consumption is much lower. When the user needs a large number of graphics operations (HD playback, 3D games) when switching alone can play the maximum performance of the whole machine, when the user needs longer endurance and lower noise when switching to set show is a good note.

Notebook dual graphics card switching methods in general on the above mentioned above, in fact, for most users need to determine whether they need to set their own needs, in addition to the general notebook computer support automatic switching dual graphics, so the average user does not need to worry too much about computer performance.

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