Implementing a centralized power management policy can help organizations save significantly on energy costs. Windows 7 has augmented standard power management components with a wide range of advanced features.
Mindteck has updated their 2009 white paper – Maximizing the Impact of Effective Power Management with Windows 7 – which explores power use of various PC platforms using Windows 7. In the new paper, they tested both sleep, idle, low use and high use scenarios and built a model to estimate cost savings by using a centralized power management policy.
Mindteck’s Smart Energy Lab conducted extensive research to study Windows 7 power consumption levels running on various hardware platforms under a range of simulated user work patterns to provide insight on leveraging Windows 7 to implement a comprehensive power management strategy.
- Idle: No user input, no applications running (except default systray), wait 10 minutes for steady state and ensure no processes are accessing I/O.
- Low-usage: VB Script used to open Excel, write a block of text 988 characters of text, save spreadsheet, pause for 8 seconds using Wscript.sleep (x) function with no CPU impact, repeat.
- High-usage: Looped full-screen video of 25 MB WMV file played with Windows Media Player.
- S3 Sleep: No user input.
The notable outcome is that in every single test, Windows 7 outperformed Windows XP, with often significant differences.
The Mindteck green computing white paper can be obtained here.
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