In its 500 GB version, the Crucial P2 is given for a sequential read speed of 2.3 GB / s and 940 MB / s in writing. Interestingly enough, there are indeed close – and even higher – values on our test protocol with 2.5 GB / s in sequential read and 979 MB / s in write. This is interesting since we are testing SSDs on a 32 GB file. In this case, our write result combines a part accelerated by the SLC cache and a non-accelerated part.
We also ran our test with a 1 GB file, this time in order to reach the maximum values, with the active cache all along. The reading average does not move logically (always 2.5 GB / s) and the sequential writing increases to 1.8 GB / s, well beyond the values given by Crucial.
It is appreciable to see a manufacturer communicating values which are quite close to reality. Crucial is catching up with Samsung a little on the subject, but the competing firm nevertheless goes further by specifying the speed without cache, which is not the case here. According to our measurements, once the cache is full (after 10 GB of copy), the speed drops to 410 MB / s. We have already seen faster, but it remains in the average of entry-level models and it is especially a result well above the 110 MB / s recorded on the Crucial P1.
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