PCMark 10 Storage Test is the most advanced and most accurate real-world consumer storage test ever made. There are four different tests you can choose from; we run two of them. The Full System Drive Benchmark and the Quick System Drive Benchmark. The Full System Drive Benchmark writes 204 GB of data over the duration of the test. The Quick System Drive Benchmark writes 23 GB of data over the duration of the test. These tests directly correlate with user experience. Of the two tests, we feel that the Quick System Drive Test most accurately replicates a typical user experience.
PCMark 10 Full System Drive Benchmark
We typically want to see a minimum of 300 MB/s bandwidth, and the 665P gives us what we want plus a little extra. At nearly 316 MB/s storage bandwidth, Intel's newest QLC SSD is beating a lot of big-name TLC and even MLC SSDs. Impressive, to say the least, because this is where it matters, user experience.
PCMark 10 Quick System Drive Benchmark
Interestingly enough, the 665P gets outperformed here by its older sibling, the 660P. We ran it several times to be sure, and this is what we got every time. Once again, the 665P does better than most where it matters most. This is an excellent user experience that is quite encouraging to see coming from the 4-bit flash.