The first benchmark available is the CMU-DSP. The CMU-DSP is a synthesizable digital signal processing core with functional testing included. The ability of the core design to be tested at multiple levels aids in its use as a CAD benchmark.
First, you should get and read the documentation in PDF format or in PostScript format. The current state of the documentation should be enough to get you started. We're still working on improving the documentation and we will be releasing more complete version in the future.
After reading the documentation you can download the CMU-DSP (version 1.0) in either Tar/Gzip format or in Zip format.
The public-domain 0.35u standard cell library (version 1.0) that we developed is also available in either Tar/Gzip format or in Zip format.
The public-domain 0.35u IO cell library (version 1.0) that we developed is also available in Tar/Gzip format.