CPU BENCHMARK LOOKUPS

The searchable list is a good feature. I certainly recommend this site for general lookups. I've used it myself. But I do not trust the results with 100% accuracy. I would not trust them without at least considering a 10% variance. There is also a large number of CPUs with names that do not exist or CPUs that have only part of the name. This usually only occurs with older CPUs though.
Basically it is a good reference though. Anyone who cannot remember the link, the easiest way to get to this site is by typing in "CPU list" in google and clicking on the first result.  

Another good benchmark tool that will let you compare across a wider range of applications and benchmarks.
http://www.anandtech.com/bench/CPU/2

Wider range of benchmarks: yes. Definitely love that site for that. The only problem is the narrow range of CPUs.