Are Low Profile Cards necessary based on the motherboard or the case?

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Jul 30, 2015
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Hi,

I was looking to buy a new graphics card, yet I am confused on whether or not it is necessary for me to buy a low profile card. I have a SFF motherboard, and I would like to know that if the low profile card is needed to fit into the motherboard, or if it is needed to fit into the case. The board does have a PCIEx16 slot, and I am a bit confused on if the size of the slot or the size of the case matters in determining what card to pick. I am aware that there are larger Mini-ITX cases, and I would be willing to buy one if it means that I do not need to use a low profile card. Thank you.
 
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Short answer: case.

The 'x16' in PCIEx16 indicates the number of lanes available to that slot. It isn't really a physical measurement, though I believe beyond x4 they are the same length. Ideally a graphics card uses the x16 slot as it can reach its potential.

With respect to the concern about a graphics card fitting the case, it does depend on the width and the depth of the case; I am thinking of a typical tower case and the layout with respect to it. Graphics cards are installed perpendicular to the motherboard, so the width of the card will reach towards the side of the case. And the length of the card corresponds to the depth of the case (too long and there may be issues too with cables). Graphics card manufacturers typically...
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Obakasama

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Apr 30, 2014
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Short answer: case.

The 'x16' in PCIEx16 indicates the number of lanes available to that slot. It isn't really a physical measurement, though I believe beyond x4 they are the same length. Ideally a graphics card uses the x16 slot as it can reach its potential.

With respect to the concern about a graphics card fitting the case, it does depend on the width and the depth of the case; I am thinking of a typical tower case and the layout with respect to it. Graphics cards are installed perpendicular to the motherboard, so the width of the card will reach towards the side of the case. And the length of the card corresponds to the depth of the case (too long and there may be issues too with cables). Graphics card manufacturers typically provide the dimensions of their cards and this can be used with information about the case to make an informed judgement about physical compatibility.

Also, with a smaller case you'll want to be mindful of the cooling inside the system. A larger one may allow you more choice, dependent on your power supply.
 
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