Path: utzoo!utgpu!water!watmath!clyde!rutgers!cmcl2!nrl-cmf!ames!sdcsvax!nosc!marlin!aburto
From: aburto@marlin.NOSC.MIL (Alfred A. Aburto)
Newsgroups: comp.sys.amiga
Subject: Re: Still More 68020 Questions
Message-ID: <1022@marlin.NOSC.MIL>
Date: 25 Jan 88 21:08:25 GMT
References: <8801081459.AA16543@decwrl.dec.com> <3129@cbmvax.UUCP>
Reply-To: aburto@marlin.nosc.mil.UUCP (Alfred A. Aburto)
Organization: Naval Ocean Systems Center, San Diego
Lines: 52

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I recently posted some floating-point test results which can be used
to compare the performance of the CSA Turbo-Amiga with 16-bit memory to
the Amiga with 16-bit memory.  All the Turbo-Amiga 7.16 MHz results which
I posted were run with 16-bit memory.  The 14.32 MHz results were all
with 32-bit memory.
-----------------------------------------------------------------------
Some comparisons (68020 Cache was ON, Software Floating-Point, 7.16 MHz
Clock Speed, 16-bit memory):

			     CPU        Floating-Point Ops Per Sec
Lattice C V3.03             68000       1.1    
Lattice C V3.03             68020       2.5

Lattice C V4.0              68000       5.2
Lattice C V4.0              68020       5.7

Manx Aztec C V3.4B (mx.lib) 68000       2.3
Manx Aztec C V3.4B (mx.lib) 68020       4.4

Absoft Fortran 77 V2.2C     68000       3.2
Absoft Fortran 77 V2.2C     68020       6.2

-------------------------------------------------------------------------

Some more comparisons (68020 Cache was ON, Software Floating-Point, 14.32
MHz Clock Speed, 32-bit memory):

			     CPU        Floating-Point Ops per Sec
Lattice C V3.03             68020       4.7

Lattice C V4.0              68020      15.3

Manx Aztec C V3.4B (mx.lib) 68020       8.7

Absoft Fortran 77 V2.2C     68020      12.7

-------------------------------------------------------------------------

Sun 3/160 Result (68020 Cache was ON, Software Floating-Point, 16.67 MHz
Clock Speed, 32-bit memory):

Sun f77 Release 3.4         68020       14.2

-------------------------------------------------------------------------

Seems to me the Amiga with 68020 and 16 or 32 bit memory performs fairly
well and it compares favorably with other similar systems.
Of course 32-bit memory is preferred (and the 68881).

Al Aburto