Dynamic video memory technology reallocates a portion of a computer’s RAM memory for video use, providing extra video memory for graphically intensive programs. The amount of RAM used can be changed through the computer’s BIOS.
Dynamic video memory technology is a method of performing active-time scaling of video memory in order to provide the most efficient graphics performance possible. The most commonly discussed style of computer memory is general-purpose random access memory (RAM), which refers to the chips on a computer’s motherboard that are used to store programs and information that are active while the computer is running. While this is the most typical use of the term, computers have other subsets of memory in addition to RAM memory. Dynamic video memory technology is a type of an important subset or RAM, known as video memory, that stores graphic image information for games and other graphics applications.
In typical computer systems, the RAM on the motherboard and the video memory stored on the computer’s video card are two separate and isolated subsystems. In other words, one type of memory cannot “borrow” available storage space from the other; they are not exchangeable. While this reduces stress on the operating system, which will always know how much RAM and video memory is available at any given moment, it can slow down operation when a program requires more video memory than the system supports in total.
Dynamic video memory technology eliminates this limitation by blurring the line between RAM and video memory. In a system that uses dynamic video memory technology, the computer may decide to reallocate a portion of the system’s RAM memory for video use. This overcomes the obstacles presented by graphically intensive programs and games, allowing the computer to have a ready reserve of extra video memory for unexpected situations. Once the need for additional video memory has passed, dynamic video memory technology simply reallocates the memory in RAM, returning the computer’s hardware resources to their default values.
Splitting the video information allocation between the original video memory and RAM can prevent the system from operating as efficiently as if all information could only fit in video memory. Your computer’s processor has to work harder to remember which memory subsystem holds a particular piece of information. This increases system overhead, contributing to potential lags during times of heavy hardware stress.
The amount of RAM intended for use as potential video memory can be changed through the computer’s BIOS. This allows the end user to decide how much RAM they are willing to “sacrifice” in exchange for additional video performance. Disabling dynamic video memory technology is just a matter of setting the amount of RAM allowed to zero.
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