Athlon II X4 610e & Phenom II X4 910e: 45W & 65W Quad Cores

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TEST RESULTS

Operating Voltages

Comparison: Operating Voltages (CPU-Z)
Model
Clock Speed
Idle
Load
Athlon II X4 610e
2.4 GHz
0.853V
1.059V
Athlon II X4 630
2.8 GHz
1.035V
1.287V
Athlon II X4 635
2.9 GHz
1.085V
1.372V
Phenom II X4 810
2.6 GHz
1.059V
1.317V
Phenom II X4 910e
2.6 GHz
0.982V
1.147V
Phenom II X4 955 BE
3.2 GHz
0.982V
1.305V
Phenom II X4 965 BE
3.4 GHz
0.959V
1.311V
Core i5-661
3.33 GHz
0.936V
1.168V
Core i5-750
2.66 GHz
0.864V
1.240V

Before we jump into power consumption numbers, please note the operating voltages of the processors tested today as sort of a disclaimer. Different samples of the same processor often run at slightly different operating voltages which can greatly affecting power consumption. With Cool'n'Quiet and C1E enabled, most AMD chips typically run with a core voltage of about 1.0V when idle and 1.3V on load.

System Power Consumption

The X4 610e comes out on top in general system power consumption, but it only beats the Core i5-661 by a small margin. The X4 910e ranks third, sandwiched between the two Core i5s and uses about 30W less on load than its closest analog, the X4 810. The majority of the rest of the lineup has remarkably similar power consumption when idle and during video playback. On load, the X4 955 and 965 are extremely energy demanding, using 42~54W more than the Core i5-750.

CPU + VRM Power Consumption

When we measure power directly from the AUX12V connector, the X4 610e is the thriftiest once again at idle and during video playback. On load, all the processors except the X4 635 use less than their rated thermal design power, though if you included the unknown amount of loss to the VRMs, it certainly does not exceed 95W.

Thermals

For our thermal test, each CPU was paired with the Scythe Kabuto with its stock fan spinning at ~800 rpm. AMD temperatures were taken using the motherboard's sensor via SpeedFan and Intel temperatures were taking with RealTemp.


Note: direct comparisons between Intel and AMD processors are not applicable.

No surprises here, the CPU load temperature is proportional to power consumption. As such, the X4 610e and X4 910e run very cool compared to the 95W and 125W AMD quads.



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