FrameThrower vs CAD Buffer II for XL1200 color graphics?

[hall@aplcen.apl.jhu.edu (Marty Hall)]

Does anyone have any experience in the performance advantages of the
FrameThrower board vs the regular CAD Buffer II for normal Symbolics
color graphics on an XL1200? By "normal" I am talking about using functions
in the Symbolics color system or just graphics:draw-xxx with :color
arguments, not anything with any of the S-products, HDTV, etc. We are
looking to speed up things like reopening windows, popping up menus,
drawing/animating simple graphics, etc, that take place on the color screen.
Ie the FrameThrower board is designed to do much more than act as a 
color graphics accelerator, but if it were used in that role, does
anyone know what kind of a performance benefit there would be?
Our local sales rep thought "significant" (or were they thinking of
the price? :-), but was a bit fuzzy.

					- Marty
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hall@aplcen.apl.jhu.edu, hall%aplcen@jhunix.bitnet, ..uunet!aplcen!hall
Artificial Intelligence Lab, AAI Corp, PO Box 126, Hunt Valley, MD 21030