From broadley@neurocog.lrdc.pitt.edu  Ukn Jun 29 10:54:01 1993
Received: from gossip.pyramid.com by SunSITE.unc.edu (4.1/tas-gen/1-30-93)
	id AA18954; Tue, 29 Jun 93 10:53:59 EDT
Received: from sword.eng.pyramid.com 
	by gossip.pyramid.com (5.61/OSx5.1a Pyramid-Internet-Gateway)
	id AA23439; Tue, 29 Jun 93 07:49:45 -0700
Received: from goss.pyramid.com
	by sword.eng.pyramid.com (5.61/Pyramid_Internal_Configuration)
	id AA16813; Tue, 29 Jun 93 07:49:34 -0700
Received: from neurocog.lrdc.pitt.edu 
	by gossip.pyramid.com (5.61/OSx5.1a Pyramid-Internet-Gateway)
	id AA23190; Tue, 29 Jun 93 07:49:25 -0700
Message-Id: <9306291449.AA23190@gossip.pyramid.com>
Received: by neurocog.lrdc.pitt.edu
	(1.37.109.4/16.2) id AA28781; Tue, 29 Jun 93 10:48:53 -0400
From: Bill Broadley <broadley@neurocog.lrdc.pitt.edu>
Subject: cpu's (short)
To: riscy@pyramid.com (Mips 3000)
Date: Tue, 29 Jun 1993 10:48:53 -0500 (EDT)
X-Mailer: ELM [version 2.4 PL21]
Content-Type: text
Content-Length: 1294      
Status: RO
X-Status: 

I was thinking of trying to sell people on the up and coming powerpc 601.
Especially since the IDT 79R3730 isn't released yet.

50 Mhz price is $280, will probably work at 40 Mhz, Motorolla just joined 
the GCC consortium so I assume gcc will work very soon (if aix gcc doesn't 
port trivally).  It has alot of nice features including a nice 32k on chip 
cache. (and I bought the manual, anyone have projected availability?) 

But then I looked at the performance numbers:
                Specint92   Specfp92
Dec 5240        27.3        29.9   <-  similiar to planned 3081 I hope
Powerpc 40      30.30       48.48 adjusted to 40 Mhz, not much better $280
Powerpc 66      50          80	  $400
Pentium 66      64.5        56.9  $1000

Considering the increased design problems, hardware and software support
it doesn't seem worth it for the small performance jump.  (No non-fp either)

It was worth a try.  Hmm maybe the powerpc 66 at $400 and run it to the memory
at 33 Mhz.... (again probably to expensive).

I was surprised at how close the powerpc at 40Mhz is to the 3081 at 40Mhz
-- 
Bill					1st>	Broadley@neurocog.lrdc.pitt.edu
Broadley@schneider3.lrdc.pitt.edu <2nd 	3rd> 	             Broadley+@pitt.edu
Linux is great.         Bike to live, live to bike.                      PGP-ok


 
