System:
Asus P5E-VM HDMI
Scythe Ninja Rev. A (fanless)
OCZ 4GB DDR2-800
Seasonic 600W PSU
3X WD 1TB GP
Lite On Blu Ray
![Image](http://i59.photobucket.com/albums/g319/stranx44/Computer/IMG_0112.jpg)
All systems were configured to run a it's minimum voltage for 3.0GHz to make a fair clock for clock measurement:
Intel Wolfdale Core 2 Duo Xeon E3110 (E8400 equivalent) (3.0GHz stock)
3.0GHz (1.072V) -> 75W Idle @ 27C
3.0GHz (1.072V) -> 123W (full OCCT) @ 44C
Intel Yorkfield Core 2 Quad Q9300 45nm Core 2 Quad CPU (2.5GHz stock)
3.0GHz (1.088V) -> 82W Idle @ 42C
3.0GHz (1.088V) -> 130W (full OCCT) @ 55C
Intel Yorkfield Core 2 Quad Q9450 45nm Core 2 Quad CPU (2.66GHz stock)
3.0GHz (1.072V) -> 82W Idle @ 53C
3.0GHz (1.072V) -> 141W (full OCCT) @ 68C
It's incredible the difference betwen all 3 chips. E3110 aka E8400 runs amazingly cool. So much so that I had to triple check the temp calculations. I could probably run a completely fanless system if i kept the clocks low with this CPU! Q9450 is just a power hog, running really hot when stressed. Although its quiet powerful, that extra 6mb of cache sets this it on fire when fully loaded. And the Q9300 is just the perfect combination in my opinion. It's powerful with 4 cores and is able to clock just as much as the Q9450 (albeit on a more stressed out FSB), but it is much cooler in its operation. This is a keeper for me for sure and which i would recommend to any HTPC/Quiet-PC enthusiast who needs the power, without all the thermals (and associated noise with it).
Note: I realize there is chip to chip variance for temps, voltage, but i have been following other owners experience and they do correlate with mine.