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From: jma@beach.cis.ufl.edu (John 'Vlad' Adams)
Newsgroups: comp.sys.amiga.hardware
Subject: Re: Slow GVP '030 accelerator board
Message-ID: <25476@uflorida.cis.ufl.EDU>
Date: 17 Nov 90 08:43:17 GMT
References: <1990Nov16.175346.4884@maverick.ksu.ksu.edu>
Sender: news@uflorida.cis.ufl.EDU
Reply-To: jma@beach.cis.ufl.edu (John 'Vlad' Adams)
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Organization: UF CIS Department
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In article <1990Nov16.175346.4884@maverick.ksu.ksu.edu> yeewei@matt.ksu.ksu.edu (Yee-Wei Huang) writes:
>
>Amiga 2000HD
>Supra memory expansion board w 2meg 80ns ram
>GVP 3001 accel card w/o '882 and w/o 32 bit ram
>
>	When I run performance tests on the machine, I show only a 20%
>increase over the stock 68000! I know that this card will perform much
>better with 32bit ram and a fpu, but it is clocked 4 times as fast as
>the stock 68000, and the 030 should perform better at the same clock
>speed. 

You are lucky to see that much of a performance boost.  Don't
forget, the 030 fetches memory in four-byte chunks through
the normal Amiga bus.  Therefore, you slow down with the wait
states and the double fetch.  An 030 will not outperform the 68000
without 32bit fast ram.

>Another funny thing: all my system performance and monitering
>software tells me that I have an '020 instead of an '030. Anyway, if
>some one could either give me some suggestions as to what might be
>wrong, (or worst case tell me that 20% is all you get :-( ) I would
>be very thankful!
>
There is no magic flag to tell the difference via software between
an 020 and an 030.  Do yourself a BIG favor.  Get at least two
megs of 32bit ram.  Don't worry about the FPU, as it won't
do anywhere near as much for you.
--
John  M.  Adams   --**--   Professional Student on the eight-year plan!     ///
Internet:   jma@beach.cis.ufl.edu   -or-   vladimir@maple.circa.ufl.edu    ///
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