HD Tune Pro - Sequential Performance
Version and / or Patch Used: 4.55
As noted on the previous page, all four drives score well in sequential read tests. Here we see a comparison in HD Tune Pro with 64kB block size tests.
The sequential write performance was all over the map on the previous page, and this chart shows us the same deviation between models. We've suspected for a long time that Toshiba was pulling away from IMFT in flash performance, and this chart really backs up that theory.
HD Tach – Sequential Write Performance after Random Writes
Version and / or Patch Used: 18.104.22.168
For this section, we're using the Toshiba A19 drives to look at performance after a reasonable number of random writes. The larger capacity size drives, regardless of flash type, did very well in this test.
The two smaller capacity drives, both with 128GB of NAND flash, show significant reductions in sequential write performance due to the previous random data writes. This isn't all that odd as we've experienced this issue on several different products over the last couple of years.
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