IGD DVMT Memory

Common Options : 32MB, 64MB, 128MB, Maximum DVMT

Quick Review

Unified Memory Architecture (UMA) is a concept whereby system memory is shared by both CPU and graphics processor. While this reduces cost, it also reduces the system's performance by taking up a large portion of memory for the graphics processor.

Intel's Dynamic Video Memory Technology (DVMT) takes that concept further by allowing the system to dynamically allocate memory resources according to the demands of the system at any point in time. The key idea in DVMT is to improve the efficiency of the memory allocated to either system or graphics processor.

This is where the IGD DVMT Memory BIOS feature comes in. It allows you to set the maximum amount of system memory that can be allocated as graphics memory, irrespective of the DVMT operating mode.

When set to 32MB, up to 32 MB of system memory can be used as graphics memory.

When set to 64MB, up to 64 MB of system memory can be used as graphics memory.

When set to 128MB, up to 128 MB of system memory can be used as graphics memory.

When set to Maximum DVMT, up to 224 MB of system memory can be used as graphics memory.

Generally, you can leave this BIOS feature at the default setting of Maximum DVMT. This setting works well in systems with lots of memory (768 MB or more). But if you have 512 MB or less of system memory, it is highly recommended that you restrict the amount of DVMT memory to 128 MB or less. Intel's graphics processors are not fast enough that allocating huge amounts of memory is going to have any significant effect on their performance.

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