Archived from groups: comp.sys.ibm.pc.hardware.chips,comp.sys.intel (
More info?)
CJT wrote:
> Tony Hill wrote:
>
> > On Thu, 25 Aug 2005 17:36:17 GMT, CJT <abujlehc@prodigy.net> wrote:
> >
> >
> >>George Macdonald wrote:
> >>
> >>>Its not even close - you can get a benchmark comparison .pdf here
> >>>http://www.tollygroup.com/DocDetail.aspx?DocNumber=205107
> >>>
> >>
> >>Now show a study _not_ sponsored by Intel. And that addresses the watts
> >>of power used by each processor.
> >
> >
> > Ok.. how's this?
> >
> > http://www.tomshardware.com/cpu/20020605/
>
>
> Quoting from the "Conclusions" page of that article:
>
> "Looking at performance and power output in terms of a ratio, the C3
> blows away its competitors."
>
<quote>
As expected, the C3 processor is not able to compete with other
processors at similar clock speeds. Depending on the particular
benchmark, an old Celeron 667 is either considerably faster or
considerably slower, making it difficult to specify a recommendation
for VIA's C3.
The C3 has definitely won the power and temperature race: no other
desktop processor consumes as little energy and wastes as little power
as the C3. Looking at performance and power output in terms of a ratio,
the C3 blows away its competitors.
</quote>
The "Old Celeron 667" that is used to support this comparison being one
that was never designed for low power operation. At 17W, it's not
particularly power-hungry and isn't exactly "blown away" by the 12W
Via. Celeron power consumption from
http://users.erols.com/chare/elec.htm
As long as Tom's was going to dig into old proecessors to compare for
conclusions about power, he should have been using the PIII-667, but
that's a nit. Any of the ULV processors that Intel has brought out,
whethere branded Celeron or Pentium, would blow away Via. A 1GHz
Pentium-M ULV draws 5 Watts.
As to comparison of "ratio" with desktop chips, the only exercise that
makes any sense is to compare power consumption at equal performance or
performance at equal power consumption.
RM