OpenSPARC with something like Piton:
http://www.pcworld.com/article/3111693/hardware/open-source-...
Also, I keep suggesting appealing to Intel or AMD's "Semi-Custom" business that modifies their processors or I.P. in customized ways. This undoubtedly cost millions of dollars. However, just taking out the ME or other bloat with only custom work being re-integrating proven components should be an easy job for their engineers. It's also way, way cheaper than designing an Intel- or AMD-class, x86 CPU. Maybe no patent suits either.
A company like Amazon or Google could easily pay for this to be done with their servers using enough CPU's to create the necessary volume to bootstrap sales of it. If it gets popular, Intel and AMD will likely release it as a product themselves.
