There are three considerations here:
* You always have better performance using a NuBus video card than
using the IIci's built-in video.
* The Macintosh Display Card 8*24 GC speeds up all QuickDraw processing,
as long as it's active and as long as the "other" video board lets it.
Check with RasterOps to see what their card does.
* You get more for your money when you put the greater pixel-depth
monitor on the faster card, probably the Macintosh Display Card
8*24 GC.