The Macintosh IIci's built-in video port supports the Apple High
Resolution Monochrome, the Apple High Resolution RGB, and the Apple
Portrait monitor. It does not support Apple's 2-page monitor.
Using the built-in video port instead of a card requires the computer to
use its system memory for screen drawing, resulting in a loss of some
performance. This can be minimized by using at least 5MB of RAM with the
1MB bank being located in bank A for video use.