video random-access memoryresolution of 1280x1024 eight-bit pixels at a refresh rate of 70 Hz, the video memory would need to supply 1280x1024x70 = 90 Mbyte/s or one byte every 11 ns. The VRAM may be dual ported in order to allow the display electronics and the CPU to access it at the same time. In an IBM PC the VRAM is located on the display interface card and 0.5 - 2 MB is typical. A VRAM Song!
Last updated: 2001-02-14