TechARP's BIOS Option Of The Week is DVMT Mode, you can learn about this feature over here.
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.
The BIOS feature that controls all this is the DVMT Mode BIOS feature. It allows you to select the DVMT operating mode.