Dual Video Card Question..

"It's Mr. Dual DVD drive HDD!

To get the most out of your laptop,

A. Get nvidia GeForce experience from the Nvidia website. Also download graphics drivers from there.

B. Go to control panel, then to battery, then select high performance power plan.

These things will improve your PC performance significantly. By the way, how did the DVD/HDD swap go?"

"Hello, your notebook has two video cards - one is integrated in CPU itself and second is discrete - NVIDIA GeForce GT 940M. Technology which is trying to find the best compromise between battery life and performance is called NVIDIA Optimus - http://www.geforce.com/hardware/technolo....

When less critical or less demanding applications are run, the discrete GPU is powered off and the Intel IGP handles both rendering and display calls to conserve power and provide the highest possible battery life.

EDIT 21.12.2016:

(according to @pccheese comment below)

You can use NVIDIA Control Panel to set default preferred GPU - for best performance and to use discrete GPU by default change the combo box Preferred graphics processorto your GT 940M (see pic. below)."

"Using two (or more) video cards in tandem—known as ""SLI"" for NVIDIA cards and ""Crossfire"" for AMD cards—can get you better performance, sometimes even for less money than you'd spend on a comparable single card solution.

''Answer on Google Source: http://lifehacker.com/5994276/is-it-wort...

Now what`s it really saying is that a single card produces more energy and then *heat* which states it works harder than switching jobs as 2 duel video cards, meaning more money wasted (in some case). Then again, if you have more of a range, you get better quality and performance. My idea of why its not on nViDIA full time is because think of it like this. nVidia constructs full on the sleek models and overall space, so Duel Cards do take more space, but also one card can have multiple programs going. In this case 2 cards have a certain limit depending on the model and overhang matter. Hope it helped!

For more Info of cons and pros, click here."