System Power Consumption
The four result values are as following:
- AMD Cool'n'Quiet / Intel SpeedStep: Windows Vista with Aero off, sitting at the desktop (1920x1080 32-bit) all windows closed, drivers installed. Processors have their power saving technology enabled, left in idle until power draw is stable.
- Idle: Windows Vista with Aero off, sitting at the desktop (1920x1080 32-bit) all windows closed, drivers installed. Processors have their power saving technology disabled, left in idle until power draw is stable.
- Load: Prime95 is used to increase load on all available cores and measurements are taken when power draw is stable.
Power consumption is one of the best things with Core 2 processors. Intel's Pentium E6300 power draw is almost comparable to AMD's single core Sempron, which is really great to see from a budget dual core CPU.
We checked the undervolting capabilities too. As it turns out, our sample can maintain stable operation at 2.80 GHz with just 1.055 V core voltage, while stock core voltage is set by Intel to 1.275 V. Under idle lower voltage this brings no improvements to power consumption but shaves off another 13 W in load state.