Power consumption of hardware components
- Please, feel free to add missing information if you find out new one.
- The table is appropriately descending sorted (sort key is power consumption)
| Component | Manufacturer | Series | Cons.[W] | on/off | Save % | Remarks |
|---|---|---|---|---|---|---|
| GPU | nvidia | GT9600 | 96 | Y | 650/1625 MHz | |
| nvidia | GT9600 | 59 | Y | 600/1500 MHz | ||
| nvidia | GT9800X | 140 | Y | 675/1688 MHz | ||
| Graphics cards | nvidia | GT9800X | 175 | Y | ||
| ati | HD4870 | 200 | Y | |||
| ati | HD3870 | 130 | Y | |||
| CPU | Intel | ATOM Z, N | 2-2.4 | N | ||
| ATOM 230 | 4 | N | ||||
| ATOM 330 | 8 | N | ||||
| Core2 Mobile Extreme | 45 | N | ||||
| Core2 Mobile Quad | 95 | N | ||||
| Core2 Mobile Duo | 10-35 | N | ||||
| Core2 Extreme | 75-150 | N | ||||
| Core2 Quad | 95 | N | ||||
| Core2 Duo | 65 | N | ||||
| AMD | Athlon II X2 | 65, 65, 80 | N | 2.9, 3.0, 3.1 GHz | ||
| Phenom II X3 | 95 | N | ||||
| Phenom II X4 | 65-125 | N | 2.5 - 3.2 GHz | |||
| Turion | N | mobile | ||||
| Monitors | 17" | 27 | Y | |||
| 19" | Y | |||||
| 20" | Y | |||||
| 22" | 34 | Y | ||||
| 24" | Y | |||||
| Motherboard | 5-50 | N | ||||
| Chipset | nvidia | N | ||||
| intel | ||||||
| HDD 3.5 SATA | 5-14 | Y | idle and load of common disks | |||
| HDD 3.5 SATA PM | WD | GP and Green | 3-7 | Y | dynamic spin | |
| HDD 2.5 SATA | 0.6-2.2 | Y | idle and load | |||
| SSD 2.5 SATA | 1.4-1.6 | Y | no difference between idle and load | |||
| SSD 1.8 SATA | Samsung | 0.7 | Y | avarage power consumption | ||
| Memory | N | |||||
| Wifi | Y | |||||
| Bluetooth | Y |
CPU
The CPUs are one of the biggest power consumer. We should focus on more effective code (code consumes less CPU-time) what will affects power consumption of processors. On the other side it will improve performance of computers containing low energy processors (e.g. Atom).
Graphics cards
The graphics cards (GC) are the main power consumer in the computer. There are no information about PM in the GC area. This points to huge potentials to save power. We have to investigate this area and discuss it with graphics driver developers.
Motherboard and Memory
Motherboards, memory and bus are not investigated yet. There are probably potentials to improve.
Disks
HDD - this classification has discovered the disks are more less behind our focus. The HW manufacturers solve PM in the firmware (e.g. GP and Green series of Western Digital). The WD disks of GP and Green series adjust dynamically spin dependent on load to save power.
We are able to optimize number of i/o operations and spin down the disk. There is no more things to do.
HDD versus SSD - Comparison of power consumption HDD and SSD disk doesn't prioritize SSD disks. You can read on Tom's hardware sites.