dGPU vs iGPU

When it comes to graphics cards, we have all heard or read of the terms iGPU or dGPU. It is very important to know the differences between one type and the other.

Especially if you consider that the performance of one is always significantly lower than that of the other. Therefore, in this article, we are going to explain what the differences can be if your computer is equipped with an iGPU or dGPU graphics card.

dGPU vs iGPU: The Difference between two Graphics Processing Unit

What is an iGPU?

The acronym iGPU stands for Integrated Graphics Processing Unit. In other words, it is an integrated graphics card. Simply, it is a processor to which several computing units are attached to perform the functions of a conventional graphics card.

All second-generation Intel Core processors fall into this category. Like all AMD APUs. This is because the compute cores and the graphics cores are connected to the same circuit. Early iGPUs were integrated into the motherboard chipset.

The advantages of this type of graphics card are obvious. This type of integrated graphics card allows the user to use their computer immediately. There is no need to add anything else. That’s why they’ve always been used in low-cost systems that don’t require a high-performance gaming graphics card. Systems used in desktop computers or most laptops.

But beware: some of these iGPUs are very powerful. You can even play games at 1080p. The latest models from AMD and Intel are increasingly blurring the line between these two types of graphics cards.

dGPU vs iGPU

What is a dGPU?

The abbreviation dGPU stands for Dedicated Graphics Processing Unit. Or a dedicated graphics card. This means that the graphics card is not connected at all to the circuit on which the calculation cores of the processor are mounted. In short, these are the graphics cards typically made by AMD Radeon and NVIDIA.

dGPU has several advantages over iGPUs. Like the fact that they are usually much more powerful than the latter. Or you don’t have to share RAM with the processor itself, since they have their own VRAM memory.

Discrete graphics cards can take two forms:

  • With a direct connection to a PCI, AGP, or PCIe port on the motherboard of a desktop PC.
  • In MX format, for laptops.

This format is actually the most commonly used to add a graphics card to a laptop.

For all the advantages of dGPU over iGPU, there are also many disadvantages:

  • Their power consumption is considerably higher than that of iGPUs. Sometimes more than 10 times more.
  • They must be physically connected to the motherboard, which is not the case with iGPUs.

Despite what we just said, most enthusiasts install dGPUs on their computers. This makes sense since games are designed to work with this type of graphics card.

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