matt@srs.UUCP (01/31/86)
Every reference I have seen on the Sun-3 in USENET has stated (assumed?)
that the 68020 runs at 16.67 MHz. We have recently received some
literature from Sun on the Sun-3 and it states that the clock rate
is 15 MHz? Why is everyone saying 16.67?
Matt Goheen
S.R. Systems
{seismo,allegra}!rochester!srs!mattgnu@hoptoad.uucp (John Gilmore) (02/03/86)
In article <169@srs.UUCP>, matt@srs.UUCP (Matt Goheen) writes: > Every reference I have seen on the Sun-3 in USENET has stated (assumed?) > that the 68020 runs at 16.67 MHz. We have recently received some > literature from Sun on the Sun-3 and it states that the clock rate > is 15 MHz? Why is everyone saying 16.67? The Sun-3 architecture does not specify a clock speed. The Sun-3/75, 160, and 180 run at 16.67 MHz. The Sun-3/50 and /52 run at 15 MHz. The /50 is the cheap machine and people felt that the price reduction was worth the performance loss. Given that a /50 is $7900 while a similar /75 runs $15900 I think they were right. -- # I resisted cluttering my mail with signatures for years, but the mail relay # situation has gotten to where people can't reach me without it. Dammit! # John Gilmore {sun,ptsfa,lll-crg,nsc}!hoptoad!gnu jgilmore@lll-crg.arpa
shannon@sun.uucp (Bill Shannon) (02/03/86)
> Every reference I have seen on the Sun-3 in USENET has stated (assumed?) > that the 68020 runs at 16.67 MHz. We have recently received some > literature from Sun on the Sun-3 and it states that the clock rate > is 15 MHz? Why is everyone saying 16.67? > > Matt Goheen > S.R. Systems > {seismo,allegra}!rochester!srs!matt Simple, there is more than one Sun-3. The Sun-3 is an entire family of machines. The Sun-3/75 and Sun-3/160 models use the same cpu board, which has a 16.67 MHz clock. The new Sun-3/50 is a different cpu board that uses a 15 MHz clock. Bill Shannon
martin@entropy.UUCP (Don Martin) (02/05/86)
<>
The recently announced Sun 3/50 and 3/52 are 15MHz clock
systems. The other Sun 3 systems are 16.67 MHz systems.
Since these are new, the previous postings refer to the
16.67 systems.
I may have the model numbers wrong because my Sun folder
is in my office but this should help clear up the confusion.
Donald C. Martin, phone (206) 543 1044
SC-32, Dept. of Biostatistics., U. of Wash, Seattle WA, 98195
{decvax,ihnp4,ucbvax!lbl-csam}!uw-beaver!entropy!martin