Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!cs.utexas.edu!uunet!mcvax!kth!sunic!maxim!prc
From: prc@erbe.se (Robert Claeson)
Newsgroups: comp.arch
Subject: Re: MIPS/MFLOPS ratio
Summary: Motorola 88100 has fast floating point
Message-ID: <749@maxim.erbe.se>
Date: 29 Jun 89 20:11:54 GMT
References: <596@megatek.UUCP>
Reply-To: rclaeson@erbe.se (Robert Claeson)
Organization: Only when payed
Lines: 15

In article <596@megatek.UUCP> mark@megatek.UUCP () writes:

>Lately, it seems that the integer performance of popularly available
>(especially RISC) computers seems to be outrunning the floating point
>performance. A little paper design for a SPARC system using the latest
>Cypress IU and FPC/FPU gets me a MIPS/MFLOPS ratio of about 10.

>This seems a little out of whack... it seems that older scientific
>processors had ratios in the 3-4 range.

A 17 MIPS Motorola 88100 RISC CPU has a fp performance of about 12 MFLOPS.
That gives (at least) me a MIPS/MFLOPS ratio for that chip of only ~1.4.
-- 
          Robert Claeson      E-mail: rclaeson@erbe.se
	  ERBE DATA AB