Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!ames!lll-winken!uunet!cs.dal.ca!aucs!870646c
From: 870646c@aucs.UUCP (The Buck Stops Here!)
Newsgroups: comp.graphics
Subject: What is more important????
Message-ID: <1663@aucs.UUCP>
Date: 15 Mar 89 19:40:16 GMT
Distribution: na
Organization: School of Computer Science, Acadia Univ., Nova Scotia
Lines: 22

In trying to determine the best route in which to upgrade my Amiga 2000 to 
reduce the time needed to do ray tracing, I need to know if it would be 
more important to obtain an upgrade board with the following:

68020 running at the normal 7.14Mhz clock speed, with a 68881 running at 
16Mhz(full 32 bit path used), the reduced speed on the 68020 ensures 
compatability with all software. Expected speed increase for normal prgs. is
62%(ones that do not use the math chip). Price $500.00 US(includes the 68020
and 68881).

Or I could get a full 16Mhz board with a 68020 running at full speed, with 
a 16Mhz 68881. Price about $1800.00 US(would have to also pay a fortune for
the 32-bit ram).

My big question is this: "Under normal ray tracing, would the prg. make more
use of the 68881 or the 68020(which is more important)? Of course the program
itself only uses the 68020, but how much math is really being done???



later
Barry Comer   870646c@aucs.UUCP