Power Macintosh: DRAM Based Video and HDI-45 Port (2/94)
When using to the new HDI-45 monitor port to connect my monitor, is dynamic random-access memory (DRAM) used for video buffering?
Yes. Frame buffering for monitor support is provided through a 640K DRAM space. The HDI-45 provides support for 16 bits on 14 inch monitors, and 8 bits on 15 inch portrait, 16 inch monitors, and VGA.