"Aaron J. Grier" wrote:

> On Wed, Mar 21, 2001 at 11:06:22AM +1100, Simon Burge wrote:
> 
> > Emphasis on _little_ here.  DEC and everyone else seem to have
> > different ideas about CPU speeds for the R4x00.  These CPUs are
> > internally clock-doubled - what DEC calls a 60MHz part everyone else
> > would seem to call a 120MHz part.  So a 133MHz CPU would be a 5000/266
> > (or something!).
> 
> ?  so 5000/200 is 25MHz bus, clock-doubled to 50MHz in CPU, and 5000/240
> is 40MHz bus, clock-doubled to 80MHz in CPU?

No, the /200 and /240 are R3000 machines, not R4000 machines.  These
really are 25MHz and 40MHz CPU cores respectively.

Simon.
--
Simon Burge                            <simonb@wasabisystems.com>
NetBSD CDs, Support and Service:    http://www.wasabisystems.com/