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Can a PCIE Cable Run 2 GPUs?

Last Updated on November 3, 2022 by Tech Questions

PCIe, or Peripheral Component Interconnect Express, is a computer expansion card standard. A PCIe cable can theoretically support up to two GPUs, although in practice it is rare to find a motherboard with more than one PCIe slot. The main advantage of using a PCIe cable is that it allows for much higher data transfer speeds than other types of cables, such as USB.

GPUs are some of the most important components in a gaming PC, and as such, you want to make sure that they are getting enough power. One way to do this is to use a PCIe cable to connect two GPUs together. But can a PCIe cable run two GPUs?

The answer is yes, but there are some things you need to keep in mind. First, the length of the PCIe cable will be important. A longer cable will result in more signal degradation and may not work as well.

Second, you need to make sure that both GPUs are getting enough power. If one GPU is significantly underpowered, it can cause problems. Ultimately, if you have two high-end GPUs and a good quality PCIe cable, you should be able to run them without any issues.

Just make sure to keep an eye on your system’s overall power consumption and don’t try to push too much through the cables.

Can Power cables affect GPU performance?

How Many CIe Cables Do I Need for a 3070?

If you’re looking to upgrade your graphics card to the NVIDIA RTX 3070, you might be wondering how many PCIe cables you’ll need to power it. The answer may surprise you: only one! The RTX 3070 is a single slot card, which means that it takes up only one slot on your motherboard.

This also means that it doesn’t require any additional PCIe power connectors beyond the standard PCI Express x16 slot that all graphics cards fit into. So, if you’re upgrading from an older card that requires two or more PCIe power connectors, you can actually save some money and clutter by removing those extra cables when installing the RTX 3070. Just make sure your power supply has enough wattage to handle the card (the RTX 3070 has a TDP of 220 watts) and you should be good to go!

How Many PCIe Cables Do I Need for a 3060?

Assuming you are referring to the Nvidia GeForce RTX 3060, you would need 3 PCIe cables- one for the 8-pin power connector and two for the 6+2 pin power connectors.

Can GPU Use Splitter Cable?

Yes, a GPU can use a splitter cable. This is because a GPU has its own power connector and does not need to share power with other devices. A splitter cable allows you to connect two devices to one power source, which can be helpful if you want to use multiple GPUs or other high-power devices.

How Many PCIe Cables Do I Need for a 3080 Ti?

If you’re looking to get the best performance out of your 3080 TI, you’ll need to make sure you have enough PCIe cables to connect it to your power supply. The 3080 TI requires two 8-pin PCIe power connectors, so you’ll need at least two PCIe cables. However, we recommend using three or four PCIe cables to ensure optimal performance and stability.

Can a Pcie Cable Run 2 Gpus?

Should I Use Two PCIe Cables for GPU?

Do you need two PCIe cables for your GPU? It’s a common question with no easy answer. In this blog post, we’ll explore the pros and cons of using two PCIe cables for your GPU to help you make the best decision for your setup.

The most important factor to consider when deciding whether or not to use two PCIe cables for your GPU is power consumption. If your GPU is power-hungry, then it’s a good idea to use two PCIe cables so that it can get enough power from your PSU. However, if your GPU isn’t very power-hungry, then using two PCIe cables may be overkill.

Another factor to consider is cable length. If you have a long graphics card and need extra length for the PCIe cables, then using two cables may be necessary. However, if you have a short graphics card or don’t need extra length, then using one cable should be fine.

Finally, you’ll also want to consider aesthetics when deciding whether or not to use two PCIe cables for your GPU. If you’re building a clean and tidy PC build, then having just one visible cable can give off a neater look than having multiple visible cables running around inside your case. On the other hand, some people prefer the look of multiple visible cables and think it looks more “hardcore.”

Ultimately, it comes down to personal preference. So, should you use two PCIe cables for your GPU? It depends on several factors including power consumption, cable length and aesthetics .

Consider all of these factors before making your final decision so that you can choose what’s best for YOUR specific situation.

Can I Use One PCIe Cable for Two GPUs?

Are you looking to use two GPUs but only have one PCIe cable? Well, you might be in luck. Depending on your graphics card and motherboard, it’s possible to use one PCIe cable for two GPUs.

Here’s what you need to know about using one PCIe cable for two GPUs. The first thing to check is whether your graphics card and motherboard are compatible with this configuration. For most AMD cards and motherboards, this shouldn’t be a problem.

However, for Nvidia cards and motherboards, you’ll need to make sure that both the graphics card and motherboard support SLI (Scalable Link Interface). If they do, then you should be good to go. Once you’ve confirmed that your hardware is compatible, the next step is to connect the PCIe cable from your first GPU to your second GPU.

You’ll then need to connect another power connector from your power supply unit (PSU) to your second GPU. This is necessary because each GPU will require its own separate power connection. Once everything is connected, fire up your computer and enjoy the benefits of having two GPUs!


Yes, a PCIE cable can run two GPUs. However, it is important to note that there are some limitations that need to be considered when running two GPUs off of one cable. First, the PCIe bus speed will be halved when running two GPUs off of one cable.

This means that each GPU will have access to half the bandwidth that it would if it were the only GPU on the system. Additionally, there may be some compatibility issues with certain motherboards and BIOSes when running two GPUs off of one cable. It is always best to check with your motherboard manufacturer or refer to your motherboard’s manual before attempting to run two GPUs off of one PCIe cable.