PCMark 7 uses traces based on relatively modern software from the Windows 7 era. Because this benchmark uses modern real world applications, we consider it to be the most important benchmark (along with PCMark 8) for determining which SSD you should buy, assuming you're buying an SSD for consumer applications. One difference with PCMark Vantage, a benchmark which we no longer run for SSDs because it is simply too old by now, is that PCMark 7 plays the traces in real time. Because of this, there is less variance in the scores of SSDs, but the scores themselves are much more indicative of what you should expect in terms of actual real world performance.
In PCMark7 the Samsung drives clearly take the lead: the SSDs manufactured by them turn out to be very well suited for practical use.
On the next page you can find the subscores.