Our 432 research

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From: utzoodecvaxucbvaxpattrsn
Date: Thu, 01 Jul 1982 19:45

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The current issue of Computer Architecture News, a publication of
ACM SIGARCH, contains a paper by Hansen, Linton, Mayo, Murphy, and Patterson
entitled ``A Performance Evaluation of the iAPX 432.''

It compares the 8086, 68000, VAX-11/780 in Pascal to the 432/670
(release 2) and the 432/800 (release 3).  This comparison is based on
4 integer programs.  For the current generation of compilers, the
432 is more code dense than the VAX-11 and 8086 but less code efficient
than the 68000.  A quick summary of the performance: the 432/670,
a 4 MHz release 2 of the microcode with a main memory requiring 
12 wait states, is about
1/5 to 1/8 the performance of a 5 MHz 8086 with no wait states.  
The yet-to-be-released 432/800, 
containing an 8 MHz, version 3, 432 with a 4 wait state memory,
varies from being 4/3 to 1/4 the 5 MHz 8086 - about 3/5 on the average.

The 68000 and the VAX-11/780 are condierably faster.

More details are found in the paper.


                                           Dave Patterson
					   University of California
					   Berkeley, California

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From: utzoo!decvax!ucbvax!pattrsn
Newsgroups: net.micro.432
Title: Our 432 research
Article-I.D.: ucbvax.7855
Posted: Thu Jul  1 19:45:19 1982
Received: Fri Jul  2 03:36:13 1982
Subject: Our 432 research
Date: Thu, 01 Jul 1982 19:45:19 +0000
Message-ID: <bnews.ucbvax.7855>