Power And Heat
If the price tags on the $1600 and $2400 systems weren't already high enough, their power consumption figures might put your electricity bill over the edge. Of course, a straight value calculation is rarely the basis most enthusiasts use to make their purchase decisions, but I still get a kick out of showing how well sub-$1000 machines perform given their cost.
Paul and I are a little dubious of Don's 2°-above-ambient idle CPU reading. Perhaps he measured right after booting up?
The only two exceptional temperatures come from the GPUs in the overclocked $1600 and non-overclocked $2400 PCs. I used a custom fan setting to force my overclocked build's graphics temperature way down, although it resulted in a significant increase in noise.