Articles: CPU
 

Bookmark and Share

(26) 
Pages: [ 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 ]

Power Consumption

Well, Llano didn’t create a revolution with their computational cores performance, let’s see what happened to their power consumption. It is especially interesting to check out this parameter, because we were able to get a 65 W A8-3800, which should theoretically be comparable in energy and heat dissipation with Core i3-2100, which TDP is set at the same 65 W.

The graphs below show the full power draw of the computer (without the monitor) measured after the power supply. It is the total power consumption of all the system components. The PSU's efficiency is not taken into account. The processors are loaded by running the 64-bit LinX 0.6.4 utility. We enabled all the power-saving technologies for a correct measurement of the computer's power draw in idle mode: C1E, AMD Cool'n'Quiet and Enhanced Intel SpeedStep.

In idle mode A8-3800 does very well. This processor has the biggest number of transistors of all today’s testing participants, but loses in energy-efficiency only to Athlon II X4. Looks like AMD’s feature that allows disconnecting idle processor units from the power rail really works.

If only one computational core out of four is fully utilized, the power consumption readings look even more impressive. Here A8-3800 based system boasts the lowest power readings of all.

When all processor cores are fully loaded, Lynx platform with A8-3800 processor consumes more than its competitors. But nevertheless, we see that its power appetites have become significantly lower compared with the previous-generation AMD CPUs. This is a pretty pleasing fact that opens the door for Llano not only into energy-efficient systems, but also into the mobile segment.

 
Pages: [ 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 ]

Discussion

Comments currently: 26
Discussion started: 06/30/11 04:06:32 AM
Latest comment: 04/12/12 03:28:26 PM

View comments

Add your Comment