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How does a discrete gpu and integrated gpu work?


Asked by Leighton Welch on Dec 04, 2021 FAQ



On the MSHybrid integrated GPU + discrete GPU systems, the display is usually driven by the integrated GPU. The discrete GPU usually renders 3D content for applications requiring 3D acceleration, which is then copied back to the integrated GPU and composited before being displayed eventually by the integrated GPU.
Consequently,
The main difference between integrated and dedicated graphics is that the integrated graphics is an approach that integrates video hardware into the motherboard for handling graphics while the dedicated graphics is a method of using a separate video hardware to perform graphics. The graphics manipulation of a computer is handled by the graphic card.
Additionally, The graphics card is located under the motherboard; therefore you need to remove most of the laptop components to access the card. Be sure to touch any non-painted metal that is connected to ground to avoid harming your computer with an electrostatic discharge.
In respect to this,
Integrated GPUs (also known as iGPUs or APUs) are GPUs built into your CPU. For the most part, iGPUs/APUs are very weak compared to dedicated graphics cards. A current generation Intel integrated GPU is fine for web browsing, email, and office applications.
Also Know,
In any of the use cases, your integrated GPU is probably bad enough that it would seriously drag down your performance. You dedicated likely can do physics and everything else faster than the integrated can do physics. In the scaling, the integrated wouldn’t be given a heavy enough workload to matter.