Every laptop has an integrated GPU (Graphics Processing Unit) built into its processor. And if, like the vast majority of notebooks, a computer is powered by an Intel CPU, it has some form of Intel HD Graphics or Iris Graphics on board.
If you want to play high-end games or do serious 3D modeling, you need to get a laptop with a more powerful, discrete graphics chip from Nvidia or AMD that takes over from the Intel GPU when you launch graphics-hungry programs. However, most mainstream users can get good enough performance from Intel’s built-in graphics.
Depending on the Intel HD or Iris Graphics and the CPU it comes with, you can run some of your favorite games, just not at the highest settings. Even better, integrated GPUs tend to run cooler and are more power efficient. Here are some answes to your questions about Intel integrated graphics.
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https://www.laptopmag.com/articles/intel-hd-graphics-comparison
