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Originally Posted by Frenchfred
exactly, I have the feeling that without the EES, the 6xx series is going to run hotter in a laptop that already is a heater.
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The article is archived- but here is the link to the last page with op temps info.
http://www.techreport.com/reviews/20.../index.x?pg=16
Quoted below-----
http://www.techreport.com/reviews/20...power-idle.gif
"The first thing one notices about power consumption at idle is that there's practically no difference between the Pentium 4 600-series chips with SpeedStep enabled or disabled. That's because the C1E halt state accomplishes essentially the same thing. Either way, though,
the 600-series and 500J-series CPUs both consume quite a bit less power at idle than the Prescott chips that don't support C1E or SpeedStep, like the P4 560 or the new Extreme Edition 3.73GHz. Because current Athlon 64 processors don't have anything comparable to the C1E halt state, they pull more juice at idle than the newer Pentium 4 chips. With Cool'n'Quiet enabled, though, all of the Athlon 64 processors consume even less power than the C1E and SpeedStep-enabled P4s. There's no doubt, though, that Intel has made great strides.
http://www.techreport.com/reviews/20...power-load.gif
Under load, SpeedStep and Cool'n'Quiet don't have any significant impact, but
we do see that the P4 600 series manages to consume less power than the older Prescott-based processors we're testing. I wouldn't attribute that difference to the presence of the C1E halt state, in part because Cinebench is a very full CPU load, and in part because the P4 500 and 500J models consume roughly comparable amounts of power at the same clock speed. The 600-series processors, and even the new P4 3.73GHz Extreme Edition, are relatively more efficient under load—despite the fact that they're packing another 1MB of L2 cache.
I asked Intel what to make of these results, but unfortunately, they weren't able to give me an answer before this article went online. I hate to speculate about why the newer P4s with 2MB of L2 cache aren't drawing as much power as the older models with 1MB of L2. Is it just better properties of newer chips, or has the new CPU core been otherwise tweaked? Perhaps we'll get some answers from Intel before too long.
Whatever the reason, the new P4 core does require relatively less power under load than the older chips that we tested. These things do vary from chip to chip, so I don't want to make too much of these results from just a few processors. Indications are certainly good, though. That said, the 90nm version of the Athlon 64 3500+ still pulls about 60W less under load than the P4 650 does, and the Pentium M is even more efficient. "
I think this means it runs cooler without ESS?
