Power Consumption and Heat Dissipation It is evident that it
doesn’t make sense from the performance prospective to compare
the CPUs with new and old processor stepping. Since Intel didn’t
introduce any new technologies and didn’t make any architectural
changes, CPUs with C0 and D0 processor steppings working at the
same clock speeds will perform equally fast in regular
benchmarks. That is why it is not very interesting to dwell on
performance of the new Core i7-975 XE in our today’s article.
However, the heat dissipation and power consumption measurements
are, on the contrary, extremely interesting to perform. This is
what we are going to do next. First of all, we measured the
temperature and full power consumption of the entire testbed
(without the monitor) with both CPUs in idle mode, without any
load. The tests were run with the CPU clock speed at 2.66GHz and
3.33GHz. We picked these particular settings because the first
one is the nominal speed of the Core i7-920, while the second
one – is the nominal fr