If you have both integrated & dedicated GPU installed, you can disable the built-in graphics card to improve performance by following these instructions.

How to Switch to Onboard GPU in ASUS. Some ASUS motherboards include an onboard graphics processing unit, or integrated graphics chip, that enables the computer to output video on a monitor.

Once you've confirmed the GPU is working, you can go back to the motherboard BIOS and switch the display interface to the dedicated GPU from the integrated graphics.

To increase gaming performance in Bluestacks Android emulator, you can switch from the integrated graphics (VEGA 8) to discrete GPU through this option.

The first notebooks with switchable graphics had a physical switch to toggle between the integrated and discrete GPU, and required you to reboot the system to switch from one to the other.

Intel benchmarks the Iris Pro 5200 at about 2.5 times faster than the HD Graphics 4000 GPU, which if true puts it in roughly the same league as today's midrange dedicated GPUs. If Intel's partners ...

When Optimus activates the discrete GPU, it starts writing frames directly to the frame buffer used by the integrated graphics, which resides in RAM.