For the power consumption of a notebook is the graphics technology used is of particular importance. The most basic way to reduce power consumption consists in choosing the right graphics card. Thus in the chipset integrated graphics solutions compared to dedicated graphics cards a much lower energy consumption. Since they are practically in classical 2D applications such as Office applications, the same performance as “providing real” video cards, they are for most users a completely satisfactory choice. Dedicated graphics cards from Nvidia or ATI offer, especially in multimedia applications demanding more power of Dell latitude d830 battery , but are especially important for playing modern 3D games.
On-board graphics vs. dedicated graphics
Graphics chipset to work with shared memory technology and bring no or very little suitable with video memory. Instead, they show a more or less large part of the memory of the notebook. The advantage here is that decreases due to the elimination of additional memory chips, the power consumption.
The difference is obvious: With an average laptop with a dedicated graphics card power consumption from Dell inspiron 1525 battery is around 22-25 watts. For a comparable device with built-in chipset graphics solution it is in the cut at 14-16 watts. A disadvantage of this method, however, for the use of RAM for the graphics leads to a slight slowing of the overall system and limited course, the normal applications for the available memory.
Energy management for the graphics card
The manufacturers of modern graphics solutions also put more emphasis on energy-efficient solutions that can be fine-tuning via software. Nvidia Sun, with its power mixer technology an intelligent power management, which aims to effectively conserve power and extend battery life. This technology continuously monitors the power consumption in different areas of the graphics processor. Depending on the workload of the individual components, the power is adjusted automatically. This process is so fast that the user perceives no power fluctuations. The result is an optimized power consumption, which is indicated by a longer battery life.
The following features are particularly interesting for low power consumption for Dell inspiron 1501 battery : The adjustment of the timing and engine ensures that the graphics processor uses only the really needed energy. The powerful high-definition video processor ensures the highest image quality, reduces CPU usage and extends battery life. For greater efficiency provide more circuits and tracks with a lower voltage. And Nvidia SmartDimmer technology ensures, for example, an intelligent and accurate brightness setting at maximum battery life.
Disks: differences in speed and standby
Regarding the laptop hard drives, the trend is similar to the models for desktop PCs, to more and more storage capacity. Since laptops but always the energy consumption from Dell inspiron 5100 battery , especially in the foreground, new hard drive models have to offer in this area interesting news. For example, work the gigantic 500 GB hard drives-making Fujitsu MHZ2 BT (4200 rpm) and Hitachi 5K500 (min 5400 rpm) according to manufacturer’s instructions with a power consumption during read and write accesses with only 1.8 respectively 1.9 watts.
Significantly, however, the difference in phases without access activity. Here the slowly rotating Fujitsu hard drive scores with a consumption of only 0.5 watts, while the Hitachi model resembling a 0.95 watt is almost twice as high energy consumption of Dell Latitude X200 Battery . What development has taken place in recent years, shows the following example: The 60-gigabyte hard drive from Fujitsu MHT2060AH from 2004 still consumed 2.3 watts for read and write operations, and 0.85 watts in sleep mode. Given an approximate tenfold increase in capacity and increase the transfers represent a very important step in the right direction.
