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Toshiba OCZ RC100 240GB & 480GB M.2 NVMe PCIe SSD Review (Page 4)

By Jon Coulter from Jun 12, 2018 @ 8:00 CDT
TweakTown Rating: 96%Manufacturer: Toshiba


Version and / or Patch Used: 3.05

ATTO is a timeless benchmark used to provide manufacturers with data used for marketing storage products. When evaluating ATTO performance we focus on the drive's performance curve and small-file performance.



We are able to match or exceed factory ATTO sequential read/write performance specs with both capacities even when we are testing as OS volumes 75% full.

Sequential Write


We would like to see better small-file performance, but overall the performance curve is more than acceptable.

Sequential Read


Both capacities deliver similar sequential read performance. Again, we would like to see better small-file performance. We also need to keep in mind that the RC100 running patched for Spectre/Meltdown is at a disadvantage relative to our test pool.

Anvil Storage Utilities

Version and / or Patch Used: 1.1.0

Anvil's Storage Utilities is a storage benchmark designed to measure the storage performance of SSDs. The Standard Storage Benchmark performs a series of tests; you can run a full test or just the read or write test, or you can run a single test, i.e. 4K QD16. When evaluating performance with Anvils, we focus on total score.


This benchmark illustrates why it is mandatory to disable Windows buffer flushing whenever running an NVMe SSD (except for certain Intel NVMe SSDs). The above result was run without disabling Windows buffer flushing.


You will find Windows buffer flushing in drive policies. Be sure both boxes are checked. We spoke to Toshiba about adding a button to their SSD Utility that will disable Windows buffer flushing. They are looking into it.



13K IOPS at 4K QD1 read is very impressive. That's exactly what we are looking for.



In terms of total score, the RC100 does very well considering it is a 2-lane SSD running patched for Spectre/Meltdown. Despite being handicapped, the RC100 easily outscores MDD's SBX and Intel's 600P at both capacity points. Looking at the read score, we can see that where it matters most, the RC100 is delivering the goods.

(Anvil) Read IOPS through Queue Depth Scale




Random performance is much more important than sequential performance for a system disk. Low queue depth random performance is more important than high queue depth performance. Random read performance is more important than random write. With those previous statements in mind, the results of this test are quite impressive. The RC100's performance curve impresses, especially at low queue depths where it matters most.

(Anvil) Write IOPS through Queue Scale




Random write performance is most impacted by patching for Spectre/Meltdown. Even so, the RC100 performs admirably. Its performance curve is still better than MDD's SBX despite the aforementioned handicap.

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