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What GPU can my motherboard support?

If you've got some older hardware, its not all bad news

Updated: Feb 20, 2023 11:04 am
What GPU can my motherboard support?

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When it comes to compatibility between PC components, there is a lot to consider. Such as the right CPU and socket, or RAM and motherboard. As such what GPU can my motherboard support?

Graphics cards interface with the motherboard by PCIe (peripheral component interconnect express). These have various different versions and lengths depending on what is used.

With the improvement of generations doubling throughputs, and so does the size. Ranging from PCIe 1 to 4 in common GPUs. Whilst they are x4, x8, or x16 in length which also varies the throughput.

What GPU can my motherboard support?

These slots come in three different versions, but all are compatible with each other. A motherboard with a PCI Express 3.0 slot will accept a PCI Express 4.0 graphics card. You’re just going to find the speed to be limited to the slowest device.

Now with modern motherboards coming out with PCIe 5.0, there is a lot of speed available. However, there are no GPUs with that speed right now so you can use an older spec in those slots.

There will be several expansion slots on many computers. They will be all PCI Express slots, but a PCI Express slot x16 is required for a graphics card.

These slots come in three different versions, but they are all backward-compatible so that you can use a PCI Express 3.0 graphic card with a motherboard with a PCI Express 2.0 slot.

So as long as you have the right length slot, your motherboard will support any GPU. Just be aware that the device will run slower and be limited to the older gen PCIe version and you won’t get the same performance out of it.

Some motherboards include two PCI Express slots x16. The most common way to fit a graphics card is to use the top slot. These are reminiscent of the old times of AMD Crossfire or Nvidia SLI setup. 

Or the extra slots can be utilized for other cards. Such as a WiFi card, sound card, or even USB expansion. There is some utility to be had with them.


With a background in engineering and PC gaming, Seb is a staff writer with a focus on GPU, storage, and power supplies. Also one of tech supports in the office he likes helping and solving problems.

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