VAX vs. Alpha for OpenVMS

From: Antonio Carlini <>
Date: Thu May 22 16:03:00 2003

> > The Alpha will be perhaps 2-3 times faster (at least
> > going by the SPEC numbers I can find for related
> > models and guessing a little based on frequencies).
> Really? The Alpha has about twice as much MHz, but the 21064
> is known to need a lot of MHz per MIPS.

The data I have for the VS4000-90 is about 32 SPECmarks
and similar numbers for SPECint/fp89.

I don't have any numbers for the DEC 3000-400 but it
runs a 21064 _at_ 133MHz. I have numbers for other members
of the family that run at various speeds from 100MHz
to 175MHz, so I guessed.

There is also a chart at:

If you go by VUPs, the uV3100-95 and VS4000-90
are about equal, which would put the systems
on a par. So you pays your money and you takes
your choice.

I still think either system would have enough
grunt to do the job.

> autoboot but everything else works. It is save to use 1.6 and
> there is a MOPable FLASH ROM update for the VS4k9x available
> that repairs this.

There is indeed - I remember sending one version to a few
people to recover their boxes (very brave of them to try
it since I'd never actually needed it myself!). Then
someone found a more recent version and made it
available via ftp. And then someone went and fixed
the problem.

Antonio Carlini   
Received on Thu May 22 2003 - 16:03:00 BST

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