HP3000-L Archives

October 1999, Week 1

HP3000-L@RAVEN.UTC.EDU

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Subject:
From:
Gavin Scott <[log in to unmask]>
Reply To:
Gavin Scott <[log in to unmask]>
Date:
Wed, 6 Oct 1999 14:28:02 -0700
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> Gavin wrote:
>
> >The 930 CPU ran at a whopping 8MHz, which was pretty good considering that
> >a series 70 was something like 1 or 2Mhz I believe.
>
> The Series 64/68/70 ran at 13.3MHz (75ns microcycle time).

That's interesting.  I didn't know it was anywhere near that fast.

Of course the 930 could potentially complete one instruction every cycle
(HP rated it at 4.5 "MIPS" in their datasheet).  The 64/68/70 on the other
hand being a CISC system would require potentially multiple microcycles
for each instruction.  On the other hand didn't the 6x/70 have dual ALUs
and a partially pipelined architecture?  Anyone know what an equivalent
"MIPS" rating for a 70 would be?  Of course this gets dangerously close
to the computer industry version of another of today's threads:

"Lies, damn lies, and benchmarks"

G.

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