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Nvidia RTX 4090 size – 4090 clearance issues

Higher TDPs mean bigger cooling and so you have to then consider if it will even fit in your case.

Updated: Nov 21, 2023 3:14 pm
Nvidia RTX 4090 size – 4090 clearance issues

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With the new RTX 40 series, we saw an increase in the power consumption of the cards. And with that, we’ve seen the new RTX 4090 size, which may end up causing some clearance issues for you. The new range of cards was announced on the 20th of September and with it, the new behemoth was showcased. Following on from the RTX 3090 Ti released earlier the same year, it also comes with a 450W board power.

All that to power the 608mm² die with 16,384 CUDA cores. This also results in a higher thermal waste that the cooling solution of the card has to deal with. And so it leads to the evergrowing size of air coolers on the GPUs. So now the Founder’s Edition Nvidia 4090 comes in at a size of 304 x 137 x 61 mm. Take up 3 slots of your motherboard. With other air-cooled custom cards likely bigger. and we do see the ROG Strix 4090 coming in at a size of 357.6 x 149.3 x 70.1 mm.

If you’re in the market for an RTX 4090, you can check our where to buy to try and source one

ROG Strix RTX 4090 23
ROG Strix RTX 4090 compared to an MSI Gaming X Trio RTX 3080

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Will the RTX 4090 fit in my case?

Even the last generation RTX 30 series was massive itself. And that caused some clearance issues already in smaller tighter cases. So it’s no surprise that a further increase in the size of the 4090 will cause you some issues.

So when it comes to planning out your build you will have to pay attention to all the dimensions. If you are planning a mid/full-tower build your main concern will be GPU length. The slot size won’t matter, and they will keep the width in line to fit cases.

But when it comes to the length it can become tighter. A case like the 4000D has the option to have a radiator in front. And right now it only supports a 360mm length, so trimming that down means the Strix is unlikely to fit in it anymore. Or at least it will be very tight which may cause airflow issues.

With cases that display your GPU with a riser, like the Hyte Y60 you do have to worry about the slots more. It only supports a GPU length of up to 375mm, so that would be fine. But it supports a thickness of up to 75mm and only recommends up to 60mm for best cooling as it still needs fresh air to make its way in. So although both 4090’s mentioned can fit in neither is ideal for airflow, another major consideration for your build.

Now MATX is even smaller and more unlikely to fit those longer cards. So it really is down to check the compatibility. With the cases likely writing out their technical specifications on product pages to make sure you’re not making any mistakes.

ROG Strix RTX 4090 15

RTX 4090 size comparison – how big are the 4090 GPUs?

Below we list the sizes of the custom models of the RTX 4090 so you know how much you have to fit into your case.

  • Nvidia RTX 4090 Founders Edition – 336 x 140 x 61mm (3 slot)
  • Asus ROG Strix RTX 4090 – 357.6 x 149.3 x 70.1mm (3.5 slot)
  • Asus TUF RTX 4090 – 348.2 x 150 x 72.6 mm (3.65 slot)
  • Colorful iGame GeForce RTX 4090 Vulcan – 348.5 x 159.5 x 70.4mm (3.5 slot)
  • Colorful Tomahawk RTX 4090 – 327 x 151.2 x 67.1mm (Over 3 slot)
  • Gainward RTX 4090 – 329.4 x 141.6 x 69.7mm (3.5 slot)
  • Galax RTX 4090 SG – 336 x 138 x 74mm (over 3.5 slots)
  • Gigabyte AORUS RTX 4090 Master – 358.5 x 162.8 x 75.1mm (over 3.5 slots)
  • Gigabyte AORUS RTX 4090 Xtreme Waterforce – 238 x 141 x 40 (2 slots), with 360mm radiator and 460mm tube lengths
  • Gigabyte RTX 4090 Gaming OC – 340 x 150.2 x 75.2 (over 3.5 slots)
  • Gigabyte RTX 4090 Windforce – 331 x 150 x 70 (3.5 slot)
  • Inno3D iChill RTX 4090 Black – 280 x 137 x 40mm (2 slots)
  • Inno3D RTX 4090 iChill Frostbite – 200 x 159 x 40mm (2 slots)
  • Inno3D RTX 4090 iChill X3 – 334 x 148 x 61mm (3 slot)
  • Inno3D RTX 4090 X3 – 336 x 145 x 61 (3 slot)
  • KFA2 RTX 4090 SG – 336 x 138 x 74mm (over 3.5 slots)
  • MSI RTX 4090 Gaming Trio – 337 x 140 x 77 mm (over 3.5 slots)
  • MSI RTX 4090 Suprim X – 336 x 142 x 78 mm (over 3.5 slots)
  • MSI RTX 4090 Suprim Liquid X – 80 x 140 x 43 mm (2 slot), 240mm radiator, 470mm tubes
  • Palit RTX 4090 GameRock OC – 329.4 x 137.5 x 71.5 mm (3.5 slot)
  • PNY XLR8 RTX 4090 Verto Epic-X – 331.7 x 136.9 x 71.1 (3.5 slot)
  • ZOTAC GAMING GeForce RTX 4090 AMP Extreme AIRO – 355.5mm x 149.6mm x 72.1mm (3.5 slot)
  • ZOTAC GAMING GeForce RTX 4090 Trinity – 356.1mm x 150.1mm x 71.4mm (3.5 slot)

You can find comparisons of the ROG Strix over on our TikTok, Part 1 and Part 2.

RTX 4090 size FAQs

How big is the RTX 4090?

The Nvidia RTX 4090 Founders Edition comes in a size of 304 x 137 x 61 mm. Whilst custom cards push that sizing further, the ROG Strix measures a whopping 357.6 x 149.3 x 70.1 mm. So it is a big consideration when looking at PC cases.

Will the RTX 4090 fit?

When you’re looking to buy a new graphics card to fit into the build you’re going to have to consider the size of the case. With a thicker and longer card, you’ll have to pay closer attention to the specifications. Comparing the size of the GPU and the supported size by the case to make sure it can fit, also considering any additions to the size (such as adding a radiator/fans to the front shortening the GPU length supported).

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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