When a person chooses to buy RAM that is well below the required level of the system, there arises the need for the system to share its memory between the processor and the graphics card or the video memory, especially when there is no high end graphics card with its own memory.
In other words, when the computer uses its own memory for the operating system, software applications and peripherals and so on, the system memory is rapidly used up, if the memory is also shared to run the video or graphics. This will result in the system showing less memory than what was originally thought to be.
This is one of the reasons why most of the computer gamers opt to buy expensive graphics card with a lot of video RAM or built in video memory. Thus, it is feasible to turn off the shared memory and get rid of the system’s memory to get the maximum power.
Although it is possible to alter or configure the shared memory through the computer’s basic input output system settings, it is advisable not to do so because it is already optimized to offer the best display performance. Hence, the best option left is to buy high end graphics card or upgrade the RAM.
It is good to connect two or more graphic processing units together in a SLI configuration so that there will be enough memory and graphics processing power for the highly demanding video graphics and games. In this way, the shared memory concept can be avoided, as much as possible.