AMD is a close collaborator with Microsoft.  We work together to help ensure the operating system runs smoothly and efficiently on AMD platforms.  Here are some of the key technology collaborations for Windows® 7:

• Power Management: AMD worked closely with Microsoft to support a new AMD product-specific power management driver in Windows 7. This in-box driver supports older processors as well as the latest generation AMD Opteron^TM processor and AMD Phenom^TM II processor. In addition to the power management driver, AMD collaborated with Microsoft to fine tune default power policy parameters that control power state transitions to help optimize for power and performance. And since this driver is "in-box", there's no need to download.
• Virtualization: AMD provided code to Microsoft and worked with the Hypervisor teams to help ensure that Hyper-V R2 and Windows Virtual PC in Windows 7 utilize Rapid Virtualization Indexing (aka nested paging tables) for improved performance of VM guests. All of the third-generation AMD Opteron processors, AMD Phenom processors, and AMD Phenom II processors support Rapid Virtualization Indexing. In addition, most of AMD's shipping processors (other than AMD Sempron^TM processors) include AMD-V^TM technology and thus support Windows XP Mode for Windows 7.
• Stability & Performance: ...

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