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From: jcp@BRL-TGR.ARPA
Newsgroups: net.micro
Subject: Re:  Raster graphics display controller chip
Message-ID: <1667@sri-arpa.UUCP>
Date: Fri, 6-Jul-84 17:51:41 EDT
Article-I.D.: sri-arpa.1667
Posted: Fri Jul  6 17:51:41 1984
Date-Received: Sun, 8-Jul-84 01:20:45 EDT
Lines: 12

From:      Joe Pistritto <jcp@BRL-TGR.ARPA>

	Keep in mind that the 7220 is SLOW!!!!  I have experience witht he
Heurikon MLZ-VDC multibus graphics board, which uses a 7220 as its mind, and
it takes noticable times to do stuff like fill rectangles, (never mind 
complex shapes, etc).   It is an order of magnitude slower than the raster
graphic boxes I am used to, (such as the Lexidata 3400, Ramtek, etc.)

	Just be advised what you're getting yourself into in terms of
performance.

						-JCP-