How To Dedicate More Ram To Your Graphics Card

To increase dedicated video RAM, you must adjust a BIOS/UEFI setting called the "UMA Frame buffer size" or similar, which reserves a fixed portion of your system's RAM for your integrated graphics card (iGPU). This method only works for integrated graphics on systems where the BIOS allows it; it does not apply to dedicated graphics cards (like NVIDIA or AMD GPUs) which have their own fixed VRAM, and many laptops lock this setting entirely. Understanding the RAM versus processor speed impact can help you decide how much system memory to safely allocate without starving the CPU.

Can you really increase dedicated video RAM?

Before you start, it's critical to understand the hard limits. The method described in this guide only works for integrated graphics (iGPUs), the graphics chip built into your CPU (like Intel UHD/Iris Xe or AMD Radeon Graphics). It does not increase the memory of a dedicated graphics card (e.g., an NVIDIA GeForce RTX or AMD Radeon RX). Dedicated GPUs have their own soldered VRAM that cannot be expanded via software or BIOS.

Furthermore, many laptop manufacturers (Dell, HP, Lenovo, etc.) disable or hide these BIOS options to prevent users from destabilizing their systems. If your BIOS lacks the setting, you cannot force it via Windows registry hacks or third-party tools, those methods are either fake or ineffective for real VRAM allocation.

The only true way to increase dedicated video RAM for an iGPU is to reserve more of your system's physical RAM (e.g., from 512MB to 1GB) in the BIOS/UEFI. This reduces the RAM available to your operating system and applications, so it's a trade-off, not a free performance boost.

How to check your current video memory allocation

Before making any changes, verify how much memory your GPU currently has dedicated. This helps you confirm whether an increase is needed and gives you a baseline to compare after the BIOS change.

On Windows (Task Manager):

1. Press Ctrl + Shift + Esc to open Task Manager.
2. Click the "Performance" tab.
3. Select "GPU 0" (or whichever GPU you want to check) from the left sidebar.
4. Look at the "Dedicated GPU memory" value under the graph. This is your current VRAM allocation.

On Windows (System Information):

1. Press Win + R, type msinfo32, and press Enter.
2. Expand "Components" → "Display".
3. Find "Adapter RAM" or "Dedicated Video Memory". This shows your current dedicated VRAM.

On macOS (Activity Monitor):

1. Open Activity Monitor (from Applications → Utilities).
2. Click the "Memory" tab.
3. Look at the "VRAM" or "Memory Used" section for your GPU.

Once you know your current allocation, you can decide if a BIOS change is worthwhile.

Step-by-step: increase dedicated video RAM in BIOS/UEFI

This is the core, verified method. Follow these steps carefully, as BIOS interfaces vary by manufacturer.

Step 1: Restart and enter BIOS/UEFI

1. Restart your computer.
2. During the boot screen (before Windows loads), press the BIOS key repeatedly. Common keys are Del, F2, F10, or Esc.
3. If you miss it, restart and try again. On some laptops, you may need to press F12 for a boot menu and then select "Enter Setup."

Step 2: Navigate to the graphics/memory configuration

1. Once in BIOS/UEFI, look for a section named "Advanced", "Chipset", "Graphics Configuration", "Integrated Graphics", or "North Bridge". Use the arrow keys to navigate.
2. In some UEFI systems, you may need to switch from "Basic" or "EZ Mode" to "Advanced Mode" (often by pressing F7).

Step 3: Find the video memory setting

1. Within the graphics section, look for a setting labeled one of the following:
   • UMA Frame buffer size
   • VGA Share Memory Size
   • Aperture Size
   • Dynamic Video Memory Technology (DVMT)
   • Variable Graphics Memory (on some MSI systems)
   • Dedicated Graphics Memory (on some MSI Claw models)
2. Select the setting and press Enter.

Step 4: Choose a new value

1. A list of options will appear (e.g., 256MB, 512MB, 1GB, 2GB). Select a value that is less than or equal to half of your total system RAM. For example, if you have 8GB RAM, you can safely allocate 1GB to VRAM, but not 4GB.
2. If you have 16GB RAM, you can choose 2GB or even 4GB, but remember this reduces available system memory.
3. Press Enter to select your desired value.

Step 5: Save and exit

1. Press F10 (or navigate to "Save & Exit") to save your changes.
2. Your computer will restart with the new VRAM allocation.

After booting, re-check Task Manager or System Information to confirm the new dedicated video memory is active.

What to do if the BIOS option is missing

If you cannot find any of the above settings, you are likely facing one of these situations:

• Locked-down laptop BIOS: Many laptop manufacturers (Dell, HP, Lenovo, Acer, etc.) intentionally hide or remove these options to prevent user error. In this case, you cannot increase dedicated VRAM via BIOS.
• Modern Intel/AMD dynamic allocation: Intel and AMD drivers often manage iGPU memory dynamically. This means the GPU automatically uses up to a certain amount of system RAM as needed, without a fixed BIOS reservation. In this case, there is no manual setting to change.
• Attempting on a dedicated GPU: If you have an NVIDIA or AMD discrete graphics card, the BIOS option for "UMA" or "DVMT" does not affect it. The dedicated GPU has its own fixed VRAM.

What you should NOT do: Do not try registry hacks (like DedicatedSegmentSize) or third-party tools that claim to increase VRAM. These methods either change a fake value that Windows reports (but the GPU doesn't actually use) or cause system instability. There is no reliable software-only way to force more VRAM on a locked-down system.

If your BIOS lacks the option, your only real solutions are:

• Upgrade to a system with more RAM (if the BIOS allows a larger reservation).
• Use a dedicated graphics card (if your system supports one).
• Accept the dynamic allocation and ensure your system has enough RAM for both the OS and the iGPU to share.

Key considerations before you change the setting

Before you enter BIOS and make changes, keep these critical warnings in mind:

• Never allocate more than your total system RAM. If you set a VRAM value higher than your total RAM (e.g., 16GB VRAM on an 8GB system), the system will ignore the setting and revert to "Auto." It will not become unbootable, but it won't work as intended.
• AMD recommends "Auto" for most users. On AMD systems, the "Auto" setting allows the driver to dynamically manage memory. Manually setting a fixed value can sometimes reduce performance in memory-heavy tasks.
• This reduces RAM available to the OS. If you dedicate 2GB to VRAM, your Windows will only see the remaining RAM (e.g., 8GB total → 6GB for the OS). This can cause slowdowns in multitasking or memory-heavy applications.
• Model differences and limits: The maximum allocatable VRAM depends on your CPU and BIOS. Some older Intel iGPUs cap at 512MB, while newer ones allow up to 2GB or more. Check your CPU's specifications or motherboard manual.
• Not a gaming silver bullet: Increasing VRAM on an iGPU does not turn it into a dedicated GPU. The performance is still limited by the GPU's processing power (shader cores, clock speed). It only helps with texture-heavy tasks if the iGPU was running out of memory.

If you understand these trade-offs and your BIOS allows it, increasing dedicated video RAM can help with specific issues like low VRAM errors in games or stuttering in high-resolution textures. But for most modern systems, leaving it on "Auto" is the safest and often the best-performing choice.

For the wider topic, see 8gb of RAM.