Impossible to tell if Nvidia NVS is really used

I have a laptop Latitude E6420. He says that he has both Intel integrated HD video 3000 w / 64 M and Nvidia NVS 4200 M. New install of win7-64. I tried to install the driver NVidia dell. He said he video driver intel needed first. Very well done. The NVidia driver then went into a fine. Device Manager now shows the two, first Intel. If I go to the screen resolution, advanced computer says that my video is Intel HD 3000 w / 64 m. The NVidia present in Device Manager, but not clear, it does nothing. If I dig deeply real in the news from Nvidia, I find it says that it has 512M dedicated mem. But this weird mixture of info confused me. Is in fact running Nvidia or Intel integrated video made for? (Bios gives no option that affects this.)

Answered my own question. The bios has an option for nvidia Optimus technology. It turns out that that is the ability to use graphics from intel for most things and only kick in graphics from nvidia, the need, thus saving power.

Tags: Dell Laptop

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