How To Increase Dedicated Video RAM (VRAM) In Windows 10

Getting that little extra space on your VRAM can do wonders for your gaming experience and we're going to help you get it.

Receiving an error message that states your PC doesn’t meet the minimum system requirements can be a crushing blow.

You might be pleased to hear that there is a solution that doesn’t involve buying new expensive hardware. This article will teach you how to increase VRAM in Windows 10.

not enough vram error
The dreaded error message

When it comes to enhancing your computer’s performance, the most obvious and reliable solution is to upgrade your rig to enjoy a better gaming experience. Unfortunately, that option is not available to everyone. We will help you get the best out of whichever graphics card you already have without upgrading your hardware.

Before going further, it’s important that we explain what video RAM is and what it is used for.

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VRAM (Video Random-Access Memory)

This type of RAM is dedicated to serving the GPU (graphics processing unit) in the same way that system RAM will assist the CPU (central processing unit).

While the system RAM directly communicates with the CPU regarding any tasks your PC performs, the VRAM only operates in the graphical department and is charged with very specific video rendering-related assignments.

There are numerous tasks that the GPU is extremely well optimized to perform.

As such, it also needs a highly optimized memory to perform those tasks as quickly as possible. Unlike an iGPU (integrated graphics processing unit), which uses a share of the system memory, dedicated GPUs have their own memory.

As a result of this critical symbiosis, VRAM will physically be very close to the GPU to ensure the fastest possible communication.

VRAM
VRAM surrounds the GPU

VRAM is crucial for tasks such as frame buffering and texture mapping. This data is essential for the GPU to render images at the fastest possible speed and the highest possible quality. This is why a lack of VRAM can be a significant detriment to your gaming experience.

Tips And Tricks

Fortunately, there are some excellent tricks that can help you get the best possible results out of the VRAM you already have. It’s always good to try these before you move on to more complicated (or expensive) solutions.

Reduce The Need For VRAM

This might sound obvious, but if you can limit how much VRAM the game you’re playing requires, you might be able to get decent results without increasing your VRAM.

One of the most important things that you have to pay attention to, and something that can dramatically lower the VRAM requirement, is the resolution at which you play your chosen game. Most modern PC games have an in-game setting that allows you to adjust the resolution.

The math is simple: the lower the resolution, the fewer pixels that need to be rendered, which results in less VRAM usage.

monitor resolution comparison chart
Monitor resolution greatly impacts how many pixels are needed for rendering a single image.

A drastic but illuminating example is that gaming at 720p requires only 2 gigabytes of VRAM, while going with a slightly higher resolution of 1080p will need anywhere between 2 and 6 GB of VRAM.

The frames rendered are directly used by the frame buffer, and the space required is pretty noticeable. If you play at 1080p, a single image will need only 8.3 MB, while that same frame rendered at 4K would need a whopping 33.2 MB.

Lowering the texture details can also help greatly, but reducing the anti-aliasing could be even more helpful. The anti-aliasing process renders the same image several times to smooth out those pesky jagged edges.

If you don’t mind those jagged edges and they don’t impact your gaming, you can turn it off completely to increase VRAM.

However, there’s only so much you can gain by lowering the details and turning off anti-aliasing. Even less graphically intensive games will still need a certain amount of VRAM to run smoothly.

Another useful tip, although this might seem obvious, is turning off any extra software running in the background that might be using VRAM.

Although a simple screen capturing application such as Fraps doesn’t use the graphics card exclusively, with some settings where the images are immediately compressed, your GPU will be tasked with additional work.

If you really need to record your screen, it’s best to capture the images raw, though that will place a greater burden on your RAM, and storage will fill quickly.

Connecting Two Or More GPUs Via SLI Or Crossfire Won’t Help

Four way SLI
Not even four graphics cards connected via SLI will help you with the lack of VRAM.

Due to how these two outdated technologies function, they can’t really take advantage of the multiple VRAM available. This is because they operate in a master-slave configuration where one graphics card will be in charge of the others.

While using Crossfire is possible with two graphics cards featuring different amounts of VRAM, it isn’t recommended as only the VRAM of the GPU with the lowest amount will be considered. As far as SLI goes, the option to connect two graphics cards with different VRAM is impossible.

NVIDIA’s NVLink is a better solution. With it, the total amount of VRAM of all GPUs will be put to use. Although this won’t be the exact sum of the two VRAMs, it will be pretty close and useful.

Related:What Is NVLink And How Does It Differ From SLI?

However, as most NVLink-compatible cards are relatively new, you probably won’t need to increase VRAM anyway. It’s still good to know that there is a relatively easy solution, should you ever stumble upon this issue.

It might not sound helpful, but it’s possible that you have an older GPU if you’re experiencing low VRAM issues. In this case, getting a new GPU of the same model will be much less expensive than buying a new graphics card.

‘Trick’ The Game Into Thinking There Is More VRAM Available

AMD Ryzen 4000 Series
A lot of CPUs from Intel and AMD feature integrated graphics

If you don’t have enough VRAM, it’s likely that some games won’t even start and instead show an error stating your lack of VRAM.

Please note that this will only work on an integrated graphics card, whether it is Intel’s HD Graphics or AMD’s APU.

Most games do this to ensure they aren’t being run at a low FPS. Developers use this tactic to prevent angry mobs with torches at their offices, demanding higher FPS.

How games scan for this is by checking out the registry and seeing how much VRAM is available. Before we move on to the actual “trick”, let’s see how to find information on how much VRAM we currently have access to.

How To Check How Much VRAM You Have

  1. Press Windows Key + R and type in “ms-settings:display“.
  2. This will lead you to your PC’s display settings. Scroll down to the “Advanced Display Settings” and click it.
  3. Here, you can click the “Display adapter properties for Display 1” option.
  4. In the “Adapter” tab, you will find the exact amount of dedicated video memory on your PC.

This will give you a clear understanding of how much additional VRAM is needed and how exactly you should address this in the next step.

Before we explain how to modify the registry, it’s important to mention that this “trick” doesn’t actually increase VRAM but rather displays a certain amount of it to the game. Although this doesn’t actually improve the performance, it should allow you to start the game if it refuses to launch because of a lack of VRAM.

It’s also important to remember that there is a reason why games refuse to load up when you lack VRAM. A game won’t be able to function properly, and it’s entirely possible that it will be barely playable.

Changing The Registry

  1. To access the registry and be able to edit it, you need to press Windows Key + R and then type in “regedit‘”.
  2. Here, you need to look for the “HKEY_LOCAL_MACHINE” folder on the left-hand side of the window.
  3. Expand it and look for the “SOFTWARE” folder, then find the “Intel” folder and right-click it.
  4. In the dropdown menu, click on “New” and then on “Key“, which you will name “GMM“.
  5. Press “Enter”, then right-click the newly-created GMM folder and again look for “New“. However, this time, select “DWORD (32-Bit) Value” and name it “DedicatedSegmentSize“.
  6. Double-click the registry you’ve just created, and a window will appear, prompting you to change the value. You can choose any number between 0 and 512, but be sure to select the decimal base.
vram regedit

Click OK, restart your computer, then try starting your game.

Changing VRAM In BIOS/UEFI

BIOS

This is the only legitimate way to increase VRAM. However, there will be a limit to how much difference it can make. It also won’t be available on all motherboards, but it should be fine for the vast majority.

Also, as BIOS came first, it remained in people’s minds, and many who were already familiar with the term refused to change when UEFI, its successor, replaced it. We’re mentioning this because we will use the term BIOS, despite this setting being possible in both, simply to avoid confusion.

In order to access BIOS, you need to restart your PC.

  1. The issue here is that, depending on your motherboard, you will need to press a different button to boot BIOS. Those buttons are typically F2, F8, F9, F12, or the Del key. It’s best to find out which button you should press, either in a manual or via the manufacturer’s website.
  2. As modern PCs boot quickly, you need to be quick to press the required button at the right time. The trusted method is to simply mash the button repeatedly from the moment you restart your computer.
  3. Once you access the BIOS, you need to look for “Advanced Chipset Features or Advanced Features,” depending on your motherboard. Once you are inside that tab, search for “VGA Share Memory Size“, “Graphics Settings“, or “Video Settings“, something along those lines.
  4. Inside is your goal. You simply need to change the “Pre-Allocated VRAM” to an option that is more than you currently have. With that, you have managed to increase your VRAM.
  5. Continue to boot up your system and check if you now have that much-desired extra VRAM.

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Aleksandar Cosic

Alex is a Computer Science student and a former game designer. That has enabled him to develop skills in critical thinking and fair analysis. As a CS student, Aleksandar has very in-depth technical knowledge about computers, and he also likes to stay current with new technologies.