Synthetic benchmarks
Synthetics are a great way to really break out the big numbers once in a while, if they’re right. We will see later how well this works in reality with the real application benchmarks. Therefore, I start with the CrystalDiskMark and four different file sizes. The SSDs were not brand new at the time of the test and I also had fill levels of plenty of 50% before deleting the data several times. However, the SSD never reached the specified maximum values from the spec sheet, but the values determined here are constant and also correspond to the actual state of the just installed, still virgin product.
You can see very well that the dynamic pSLC does exactly what it is supposed to, mind you with an empty (though not virgin) SSD. The annoying thing about a 1 TB SSD is that there is still not so much space left after installing an OS and aplications, so it is better to never fill it more than 2/3 with data. You must always take this into account when planning the system in advance. A higher load does not affect reading, but the dynamic SLC will certainly reach its limits at some point during writing. And if you do it over and over again, switching the memory modules between the two methods will also eventually become impossible.
ATTO is very interesting this time, although I’m only working with two sizes here, which ends up being the same. The data are quite similar to those of the CrystalDiskMark.
Video streams
But what happens when you stream a video? For this purpose, the industry uses the AJA benchmark, which is in effect an interface between synthetic benchmarks and practical application. The Acer Predator GM7 does not fluff here either, although it already deviates a bit from the theoretical write and read rates.
We see that the comments made on the previous page about the dynamic pSLC cache and the behavior with the larger file blocks are completely true. Smaller file movements would be even faster if you leave out the overhead of the file system. You can see that especially at the end of the run.
For the curious, I also have the measurement protocol with all the details as a PDF:
BENCHMARK-TABLE
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