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

Read

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.

Read: 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.





Concerns about testing the drive correctly disappeared immediately when looking at the read. Here, the G-Drive won in basically all tests except the smallest 12–59 kB files, where the PXD has an above-average result. But let’s go gradually. The 9 GB file was transferred the fastest of the tested disks at a speed of 1445 MB/s, which is 5% more than with Fusion Drive. The fastest USB SSD, the P50, is up to 76% slower. We see the same 5% difference with 24–36 MB files, where we also exceeded 1 GB/s. The P50 lags here by 52%. Just below the 1 GB/s limit is the transfer of 5–10 MB files, where the difference compared to Fusion Drive is only 1%. The lead over the P50 also decreased to 37%. We also see a very good result with 427–1235 kB files, where the G-Drive achieves a 32% lead over the second fastest PXD. The smallest files are the fastest on the PXD, the G-Drive loses by 30%. So we can see that the SSD works properly and the slower writing in the previous chapter is real and not a wrong result, as I feared.

Read: synthetic tests

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 reading tests are, except for one, fully in the hands of the G-Drive. In the sequential test we see almost 2 GB/s and a great result is also with 4K (64 threads), where the G-Drive is up to 3 times faster than the second fastest SSD. The access time of only 0.037 s is also great. 4K read is the only thing that the Mobile Pro SSD lags behind the P50, by 58%, which in practice is a difference of 13 MB/s.


  •  
  •  
  •  
Flattr this!

Leave a Reply

Your email address will not be published. Required fields are marked *