Will this graphics card fit my case? GPU clearance explained

Short answer: compare three numbers from the card maker (length, height and thickness) with your case maker’s limits, then take off space for any front radiator and leave room above the card for the power cable.

The three card measurements

• Length runs from the metal bracket at the back of the case towards the front. This is the number most cases list as maximum GPU length.
• Height is measured from the slot upwards towards the side panel. Tall cards, plus a power cable coming out of the top edge, can press against the glass.
• Thickness is quoted in slots. Expansion slots are spaced about 20mm apart, so a 2-slot card is about 40mm thick, a 3-slot card about 60mm, and a 3.5-slot card about 70mm.

Use the dimensions for the exact model, not the GPU family. Two RTX 5080 cards from different makers can differ by several centimetres. Every listing in our store shows the manufacturer part number; search it on the maker’s site for the full dimensions, or ask us and we will look it up.

Reading the case specification

A case’s maximum GPU length is only useful if you know what it assumes. Some makers quote it with front fans installed, some with the front empty, and some give a second, shorter figure with a front radiator fitted. Read the case manual or spec sheet for which one applies.

If the quoted figure assumes an empty front and you plan to fit a front radiator, subtract the radiator and its fans. A typical slim radiator is 27 to 30mm and a standard fan is 25mm, so plan on losing roughly 55mm. Thicker radiators or push-pull fans take more. Do not subtract it twice if the case maker has already given a radiator figure.

Leave room for the power cable

From the RTX 5070 upward, most GeForce cards are powered through a 16-pin plug on the top edge. The cable must go in straight and fully seated, without a sharp bend right at the plug. In narrow cases, that cable is what hits the side panel, not the card. Check the case’s maximum GPU height or width, allow a few centimetres above the card for the plug and cable, and consider a right-angle cable if space is tight. Our power supply guide covers the connector in more detail.

What else a thick card can block

• M.2 slots and SATA ports under the card become hard to reach, so install drives first.
• The lowest expansion slots may be covered, which matters if you want a capture card or Wi-Fi card as well.
• In some cases the card sits close to the power supply shroud or bottom fans; a very thick card can leave them little air.

Sag and support brackets

Large cards are heavy and can bend down at the far end over time. Many come with a support bracket or stand in the box; fit it. If yours did not, a simple adjustable GPU support bracket does the job.

Vertical mounting

A vertical mount shows off the card but needs a riser cable rated for your card’s PCIe generation and enough gap between the fans and the glass. If the fans sit too close to the panel, the card runs hotter. Check that your case supports vertical mounting with a card of your thickness.

Small form factor builds

For a mini ITX case, check three things together: the maximum card length, the number of slots the case allows (often 2 to 3), and the power supply type, which is usually SFX. Compact 2-slot and 2.5-slot versions of cards like the RTX 5060 Ti and RTX 5070 make small builds much easier.

Fit checklist

1. Get the length, height and thickness for the exact card model.
2. Find the case’s maximum GPU length and check what it assumes at the front.
3. Subtract any front radiator and fans if the figure does not already allow for them.
4. Check the slot count and height limit, then add room for the power cable.
5. Plan drive installs and the support bracket before the card goes in.

Browse graphics cards and PC cases, or send us your card and case and we will check the fit.