Windows Server 2008 saves 81% over WebSphere on Power 6!

• Customers can save up to 81% in total system costs by running applications on Microsoft .NET and Windows Server 2008 rather than IBM WebSphere 7 on Power6/AIX.
• Customers who run their IBM WebSphere 7 applications on Windows Server 2008 and Hewlett Packard/Intel 64-bit blade servers can save up to 66% in total system costs when compared to IBM WebSphere 7 on an IBM Power6/AIX platform.
• The Microsoft .NET Framework on Windows Server 2008 handles 57% more load than WebSphere 7 running on IBM Power6/AIX, and IBM WebSphere 7 on Windows Server 2008 handles 37% more load than IBM WebSphere 7 running on Power6.

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We recently discovered that IBM has provided a whitepaper to some of its customers that we believe to be IBM’s response to our published benchmark study. The full text of IBM’s whitepaper is available here.

Upon our review, we have some serious concerns about the findings in IBM’s whitepaper for a number of reasons. For example, neither the source code nor the tests it ran were disclosed in the whitepaper, and IBM’s tests were based on older Microsoft technologies. To address these concerns, we have published a detailed technical response to IBM's whitepaper here.

We stand behind the results published in our benchmark study, and we continue to extend an open invitation to IBM to meet us in an independent lab to jointly perform testing on our respective platforms and to have the results validated by an third party. In addition, we invite IBM’s competitive response team to our lab in Redmond, Washington, for discussion and additional testing in their presence and under their review.