G-Drive Mobile Pro SSD – 3 GB/s near at hand

Write

G-Technology may be a lesser-known brand at first glance, but when I say names like WD and SanDisk, you’re sure to know what I mean. Of the three interconnected brands, G-Drive is profiled as the premium one, aimed mainly at creators and MacOS users. Mobile Pro SSD is a new addition to the family, which will impress with its Thunderbolt 3 connection and extreme speeds well above 1 GB/s.

Write: practical tests

The tests consist of sequentially moving directories from the RAM disk to the SSD. Files in these directories vary in size. From the largest 9-gigabyte one (when most SSDs reach maximum performance), they gradually decrease to very small ones (12–59 kB) – in such operation, the performance is usually relatively low.





Practical tests in Windows show us that the G-Drive lags a bit behind the P50, which is a surprise. With large 9 GB and 24–36 MB files, it loses 13/11%, which is noticeable. We noticed worse results with 5–10 MB and especially smaller 427–1235 kB files, where the G-Drive fell to the third and even sixth place, which is surpassed even by cheaper SSDs with USB connection. However, the G-Drive starred with the smallest 12–59 kB files, where all SSDs except the PXD reach poor speeds. In this test, it is about three times faster than the competition, but it also has a third of the performance of the PXD.

Zápis: syntetické testy

The results are from the AS SSD benchmark. The size of the library is set to 1 GB, which means that the measured values do not yet reflect the limitations resulting from the full SLC buffer, which is an integral part of most fast, cheaper SSDs with TLC memory.




Synthetic write tests more or less confirm the findings from practical tests and thus the high speed in sequential writing, but weaker results in medium-sized files. The slower access time is also surprising. The question is whether this was not caused by the utility for reading the HFS storage, or by some problem with the TB3 driver on the tested motherboard.


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