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From: dboyes@uoregon.UUCP
Newsgroups: comp.sys.ibm.pc
Subject: Re: IBM PS/2 clock speed and others
Message-ID: <603@uoregon.UUCP>
Date: Sun, 6-Sep-87 19:53:05 EDT
Article-I.D.: uoregon.603
Posted: Sun Sep  6 19:53:05 1987
Date-Received: Tue, 8-Sep-87 00:40:57 EDT
References: <1440@gryphon.CTS.COM>
Reply-To: dboyes@drizzle.UUCP (David Boyes)
Organization: University of Oregon, Computer Science, Eugene OR
Lines: 17

The reason that you see a .8 or so increase in the Norton SI rating
after installing a V-20 is that although the NEC chip is doing exactly
the same things with the instructions in your program, the chip
architecture has been streamlined to a great degree, thus making the
processor more efficient. You're still running at only 4.77 Mhz, but the
V-20 is making more efficient use of the cycles.
 
 BTW, the 8087 will only affect programs that use it, i.e. heavy
 floating point & transcendentals. Try compiling anything that does
 graphics (use QuickBASIC on the programs that come on the DOS
 supplemental disk) with the 8087 support and compare -- it's much nicer
 on the 8087, especially when circles are involved.

-- 
David Boyes                   ARPA: 556%OREGON1.BITNET@WISCVM.WISC.EDU
Systems Division              BITNET: 556@OREGON1
University of Oregon Computing Center   UUCP: dboyes@uoregon.UUCP