Windows 7 Boosts Laptop Battery Life - InformationWeek
IoT
IoT
Infrastructure // PC & Servers
News
10/27/2009
02:58 PM
50%
50%
RELATED EVENTS
The Real Impact of a Data Security Breach
Aug 02, 2017
In this webcast, experts discuss the real losses associated with a breach, both in the data center ...Read More>>

Windows 7 Boosts Laptop Battery Life

Collaboration between Intel and Microsoft means at least an extra hour of power, vendors claim.

Frequent fliers whose laptops run out of juice right before their movie ends might want to upgrade to Windows 7, given claims the OS allows batteries to last longer thanks to some integration work Microsoft undertook with chipmaker Intel.




Windows 7 screen shot
(Click for larger image and for full photo gallery)

"Microsoft and Intel engineers were able to reduce power usage of a Windows 7 laptop nearly 20% over an identical laptop running Windows Vista SP2," wrote Joakim Lialias, Intel's Microsoft relationship manager, in a blog post Monday.

As a result, a typical laptop will run for more than an hour longer on batteries than a Vista laptop, said Lialias.

Microsoft and Intel achieved the power savings by focusing on key system areas. Windows 7 is designed to power down devices that are not in use, shut off buses where possible, and maintain Intel chips in Deep Power Down state for as long as practical, according to Lialias.

"That gained an additional 1.4 hours of battery life" on a test laptop, said Lialias. "Enough extra power to blow by the credits and see all of the special features" on a DVD, Lialias wrote.

Lialias said that achieving such synergies between operating system and chips was made easier by the fact that Intel and Microsoft were on similar timetables for releasing their most recent products.

"With Windows 7 and Intel's new Core processors rolling out at roughly the same time, the team saw the opportunity to really put rocket engines on PCs," wrote Lialias.

Vista, Windows 7's predecessor, was plagued by incompatibilities with numerous, third-party hardware products. That prompted Microsoft to put extra effort into partner relationships during Windows 7's development.

Beyond tighter integration with Intel chips, Windows 7 includes a feature called Device Stage that automatically recognizes the make and model of peripherals that are added to a PC and allows users to manage the device from the desktop.

Microsoft formally released Windows 7 to the public last week. The company's promise to frustrated Vista users was that Windows 7 offers a more streamlined interface, improved compatibility with third-party hardware and software, and less intrusive security measures.

The full version of Windows 7 Professional is $299, with upgrades going for $199. Windows 7 Ultimate is priced at $319, with the upgrade version at $219. The full version of Windows 7 Home Premium is priced at $199, with an upgrade from Vista or XP selling for $119.


InformationWeek has published an indepth report on Windows 7. Download the report here (registration required).

Comment  | 
Print  | 
More Insights
Comments
Newest First  |  Oldest First  |  Threaded View
How Enterprises Are Attacking the IT Security Enterprise
How Enterprises Are Attacking the IT Security Enterprise
To learn more about what organizations are doing to tackle attacks and threats we surveyed a group of 300 IT and infosec professionals to find out what their biggest IT security challenges are and what they're doing to defend against today's threats. Download the report to see what they're saying.
Register for InformationWeek Newsletters
White Papers
Current Issue
IT Strategies to Conquer the Cloud
Chances are your organization is adopting cloud computing in one way or another -- or in multiple ways. Understanding the skills you need and how cloud affects IT operations and networking will help you adapt.
Video
Slideshows
Twitter Feed
Sponsored Live Streaming Video
Everything You've Been Told About Mobility Is Wrong
Attend this video symposium with Sean Wisdom, Global Director of Mobility Solutions, and learn about how you can harness powerful new products to mobilize your business potential.
Flash Poll