A6,A7,A8,AX7 Pro,AX8 Pro,AE7,AE8 Modify vedio memory capacity

Article ID Code:GK-BIOS-04

AMD integrated graphics (iGPU, such as the Radeon Graphics series in Ryzen processors) use a Unified Memory Architecture (UMA) shared memory mechanism. This means the iGPU does not have dedicated VRAM; instead, it dynamically or fixedly allocates a portion from the system main memory (RAM) to serve as graphics memory.

Working Principle

• Dynamic Allocation: Modern AMD APUs (e.g., Ryzen 7000/8000 series) default to dynamic sharing. The system automatically adjusts VRAM size based on graphics load (typically from 512MB up to 50% or more of system RAM). Memory is released for CPU use when idle and increased during high loads (e.g., gaming).

• Fixed Allocation: In BIOS/UEFI settings, you can manually set "UMA Frame Buffer Size" or "Integrated Graphics Share Memory" (common options: 512MB, 1GB, 2GB, 4GB, etc.). Once fixed, VRAM size remains constant—more stable but less flexible.

• Memory Type Impact: Dual-channel RAM is recommended, as shared memory bandwidth directly affects iGPU performance (dual-channel doubles bandwidth). APUs with LPDDR memory (e.g., laptops) have higher sharing efficiency.

Setup Recommendations

1. Enter the BIOS interface: Press the Del or Delete key repeatedly during startup or reboot to enter the BIOS menu.
2. Select the Graphics Memory (VRAM) Adjustment option, modify the video memory capacity, and press F4 to save the settings.

   • Select the path: Main tab → Advanced tab → UMA Frame Buffer Size.

     

3. After making the changes, restart the system. Then, open Task Manager and check whether the video memory capacity under the GPU section has been updated.