First of All,
My machine is as follows:
Dell Inspiron notebook N5110 Core i5 with Nvidia GT 525M with optimus technology, This optimus technology is simply the device have two graphics cards, one Intel and the other is the Nvidia one.
This is used to save laptop’s battery by disabling the Nvidia card that is relying on GPUs when low graphics processing is needed and doing that on the intel one, and when high performance is needed the work is done on the Nvidia GPUs are redirected to the intel one after being done.
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