Samsung Portable SSD T1 Review: Blazing Fast External Storage

ATTO Benchmarks

ATTO is a "quick and dirty" type of disk benchmark that measures transfer speeds across a specific volume length. It measures transfer rates for both reads and writes and graphs them out in an easily interpreted chart. We chose .5kb through 8192kb transfer sizes and a queue depth of 6 over a total max volume length of 256MB. ATTO's workloads are sequential in nature and measure bandwidth, rather than I/O response time, access latency, etc.

ATTO Disk Benchmark
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Samsung Portable SSD T1 ATTO Read

Samsung Portable SSD T1 ATTO Write

There are two things to notice here. The first is that the T1 is again on a different playing field, this time not only hitting the advertised 450MB/s transfer rate, but exceeding it. And the second point of interest is the smooth curve representing consistent performance without any noticeable jitters, spikes, or drops.

As we saw in SANDRA, enabling AES encryption doesn't result in any kind of noticeable performance hit.

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