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 Toshiba OCZ RD400 series drives performed very well in the trace-based PCMark 7 secondary storage benchmark. Only the Samsung SSD 950 Pro put up a higher overall score, even then it was only be a couple of percentage points variance. In you drill down into the individual tests, you'll see that the Toshiba OCZ drives traded victories with the Samsung SSD 950 Pro.