If you’ve opened Windows Task Manager or launched a game only to see a warning about “low VRAM,” you’re probably wondering whether you can increase your AMD graphics card’s video memory.
- Can You Actually Increase VRAM?
- Method 1: Increase the UMA Frame Buffer in BIOS
- Method 2: Use AMD Variable Graphics Memory (Supported Systems)
- Method 3: Install More System RAM
- Method 4: Enable Dual-Channel Memory
- Method 5: Update AMD Adrenalin Drivers
- Method 6: Lower Texture Quality
- What Doesn’t Work
- Should You Increase the UMA Frame Buffer?
- Final Thoughts
The answer depends on the type of AMD graphics hardware you have.
If you’re using an AMD Radeon dedicated graphics card, the amount of VRAM is fixed and cannot be upgraded through software or BIOS settings. However, if your PC uses an AMD Ryzen processor with integrated Radeon Graphics (iGPU), you can often allocate more system memory to the GPU, effectively increasing the amount of dedicated video memory reported to Windows.
In this guide, we’ll explain the difference, show you the available methods in 2026, and help you decide which option is worth trying.
Can You Actually Increase VRAM?
This is the biggest misconception surrounding VRAM.
There are two different situations:
- Dedicated AMD graphics card (Radeon RX series): The VRAM is physical memory soldered onto the graphics card. It cannot be increased unless you replace the GPU with one that has more VRAM.
- AMD integrated graphics (Ryzen APUs): The GPU shares your system RAM. In many systems, you can reserve more RAM for graphics by changing the UMA Frame Buffer size in the BIOS or using AMD’s newer Variable Graphics Memory feature on supported processors.
Understanding this difference prevents a lot of frustration.
Method 1: Increase the UMA Frame Buffer in BIOS
If your AMD processor includes integrated Radeon graphics, this is usually the most effective way to increase dedicated video memory.
The setting is commonly called:
- UMA Frame Buffer Size
- UMA Framebuffer
- Integrated Graphics Memory
- iGPU Memory
- Graphics Memory Size
The exact name depends on your motherboard manufacturer.
How to change it
- Restart your computer.
- Enter the BIOS (usually by pressing Delete or F2 during startup).
- Navigate to the Advanced or Integrated Graphics section.
- Find the UMA Frame Buffer Size option.
- Select a larger value such as:
- 1 GB
- 2 GB
- 4 GB
- 8 GB (on systems with plenty of RAM)
- Save your settings and restart Windows.
AMD notes that the default Auto setting is the best choice for most users, but manually increasing the buffer can help games or applications that require a minimum amount of dedicated graphics memory.
Method 2: Use AMD Variable Graphics Memory (Supported Systems)
Newer AMD Ryzen AI processors introduced Variable Graphics Memory (VGM), a feature that lets users allocate a larger portion of system RAM as dedicated graphics memory.
Instead of adjusting the BIOS manually, supported systems allow the setting to be changed through AMD Software: Adrenalin Edition.
Navigate to:
Performance → Tuning → Variable Graphics Memory
Depending on your hardware, you’ll usually see options such as:
- Default
- Medium
- High
- Custom
Changing this setting requires a restart because Windows recognizes the newly allocated memory as dedicated graphics memory. AMD recommends leaving the default setting unless you have workloads such as AI applications or games that genuinely benefit from more dedicated memory.
Method 3: Install More System RAM
If your computer uses integrated graphics, adding more RAM is often a better upgrade than simply reserving more memory.
Why?
Integrated GPUs don’t have their own memory chips. Instead, they borrow RAM from the system whenever needed.
For example:
- 8 GB RAM → limited shared graphics memory
- 16 GB RAM → noticeably more room for graphics
- 32 GB RAM → ideal for modern integrated graphics gaming and multitasking
Many modern AMD systems automatically scale available shared GPU memory based on installed RAM, even if the dedicated allocation shown in Windows doesn’t change dramatically.
Method 4: Enable Dual-Channel Memory
This doesn’t increase VRAM, but it can significantly improve integrated graphics performance.
An AMD iGPU relies heavily on memory bandwidth.
If you’re running:
- One 16 GB stick
switching to:
- Two 8 GB sticks
often delivers noticeably better gaming performance because dual-channel memory doubles available bandwidth.
For integrated graphics, faster RAM frequently provides larger performance gains than increasing the reserved VRAM alone.
Method 5: Update AMD Adrenalin Drivers
Many users focus on hardware upgrades while forgetting that AMD regularly improves graphics performance through driver updates.
The latest Adrenalin drivers may include:
- Better game optimizations
- Improved memory management
- Bug fixes
- Better DirectX and Vulkan performance
Updating won’t increase physical VRAM, but it may allow games to use existing memory more efficiently.
You can download the latest drivers directly from AMD:
Method 6: Lower Texture Quality
If you’re using a dedicated Radeon graphics card with limited VRAM, the only practical solution may be reducing VRAM usage instead of trying to increase it.
The settings that consume the most video memory include:
- Texture Quality
- Texture Resolution
- Ray Tracing
- High-resolution texture packs
- Large shadow maps
Lowering texture quality by one level often frees hundreds of megabytes—or even several gigabytes—of VRAM with only a small impact on image quality.
What Doesn’t Work
You’ll find plenty of websites recommending questionable “VRAM hacks.”
These include:
- Editing the Windows Registry
- Fake VRAM “boost” software
- Memory optimization utilities
- Third-party VRAM unlock tools
These methods do not create additional physical video memory and generally won’t improve gaming performance.
At best, they only change the number Windows reports. At worst, they can cause system instability.
Should You Increase the UMA Frame Buffer?
For most users, AMD recommends leaving the BIOS setting on Auto, since the system dynamically manages memory allocation. However, manually increasing the buffer can help in certain situations, especially when a game refuses to launch because it detects too little dedicated VRAM or displays missing textures.
On the other hand, allocating too much RAM to the GPU can leave less memory available for Windows and your applications.
As a general guideline:
- 8 GB RAM: Reserve no more than 1–2 GB.
- 16 GB RAM: 2–4 GB is usually a good balance.
- 32 GB or more: Larger allocations are possible if your workload benefits from them.
Final Thoughts
Increasing VRAM on an AMD system isn’t always possible, but understanding your hardware makes all the difference.
If you own a dedicated Radeon graphics card, the VRAM is fixed and can’t be expanded through software. Your only upgrade path is replacing the GPU with one that includes more onboard memory.
For AMD Ryzen processors with integrated Radeon Graphics, however, you have more flexibility. Adjusting the UMA Frame Buffer in the BIOS, enabling AMD’s Variable Graphics Memory on supported systems, installing more RAM, and running dual-channel memory can all improve the graphics experience without buying a new graphics card.
Before making any changes, remember that more dedicated video memory doesn’t automatically mean higher frame rates. In many cases, keeping your drivers updated, optimizing game settings, and ensuring your system has enough RAM will provide a much bigger improvement than simply increasing the amount of reserved graphics memory.
Useful Resources
- AMD: https://www.amd.com/en/resources/support-articles/faqs/PA-280.html
- AMD Driver Downloads: https://www.amd.com/en/support
