Performance per watt is always an interesting metric that has been largely left alone.  My Ryzen 7 5700G claims to operate within a 65W thermal envelope, and with modern monitoring I can pretty much keep it there.  Heck, even my i7-7700 can be manually throttled down to keep it within a certain frequency envelope so that it doesn't cook itself, because I'm not happy with the thermal solution HP came up with.

-Henry

On Fri, 13 Jun 2025 at 15:01, Alexander Schreiber <als@thangorodrim.ch> wrote:
On Mon, Jun 09, 2025 at 11:36:06AM -0700, Al Kossow wrote:
> On 6/9/25 10:21 AM, Vicente Collares via TUHS wrote:
> > Given that I have little space it would need to be something small.
>
> The more important question is how slow do you want it to be?

SIMH VAX runs on a Raspberry Pi4 class machine (RockPro64) reasonably
well, if a little slow. Compiling stuff there is not an activity for
the impatient ;-)

But that host hardware is reasonably cheap, quiet (no fan) and low
power.

Kind regards,
           Alex.
--
"Opportunity is missed by most people because it is dressed in overalls and
 looks like work."                                      -- Thomas A. Edison