We really like PCMark 7's Secondary Storage benchmark module for its pseudo real-world application measurement approach to testing. PCMark 7 offers a trace-based measurement of system response times under various scripted workloads of traditional client / desktop system operation. From simple application start-up performance, to data streaming from a drive in a game engine, and video editing with Windows Movie Maker, we feel more comfortable that these tests reasonably illustrate the performance profile of SSDs in an end-user / consumer PC usage model, more so than a purely synthetic transfer test.
The Intel SSD 600P performed right about in the middle of the pack according to PCMark. Of all of the tests we ran, this one is probably most indicative of real-world performance. Although the 600P trails at higher queue depths and with large block transfer sizes, those use patterns aren't indicative of most mainstream desktop workloads.