Well I'm not positive this is testing apples-to-apples, but here are my results. At first, I assumed you chose the "Assess Performance" profile, and produced the first result. The second result is of the same type as yours. Quite a bit of difference!
(http://img229.imageshack.us/img229/6995/codeanalystperformancer.th.png) (http://img229.imageshack.us/img229/6995/codeanalystperformancer.png)
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(http://img155.imageshack.us/img155/6995/codeanalystperformancer.th.png) (http://img155.imageshack.us/img155/6995/codeanalystperformancer.png)
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AMD Athlon x64 dual 4000+ WinXP Pro x64 SP2
World Community Grid runs on this box, which is the two unknown processes using 100% CPU. Suspending it just shifted those clocks into "AMDPPM64.SYS", which looks like a power-management (sleep) function.
If you can, create an account at http://www.worldcommunitygrid.org/, find and download the latest BOINC client (off-site), and start crunching "Help Conquer Cancer" data packets. It's too late for my mother; but perhaps we can find a cure before I get it, or my kids. :(