Western Digital Blue SN550 NVMe SSD 1TB Review (Page 4 of 11)

Page 4 - Benchmark: ATTO Disk Benchmark

About ATTO Disk Benchmark

The ATTO Disk Benchmark performance measurement tool is compatible with Microsoft Windows. Measure your storage systems performance with various transfer sizes and test lengths for reads and writes. Several options are available to customize your performance measurement including queue depth, overlapped I/O and even a comparison mode with the option to run continuously. Use ATTO Disk Benchmark to test any manufacturers RAID controllers, storage controllers, host adapters, hard drives and SSD drives and notice that ATTO products will consistently provide the highest level of performance to your storage.

From: Developer's Page

Following up next is our usual ATTO read and write tests. ATTO is an often-quoted benchmark, because it is easy to use and accurate. For the most part, it is a favorite among reviewers. ATTO uses easily compressible data, so compression-heavy controllers will perform very well here. As manufacturer peak read and write performance ratings are usually achieved using ATTO, whether a drive lives up to its marketing claims or not can be validated by this program. Western Digital claims maximum read and write numbers of 2400MB/s and 1950MB/s, respectively. According to our tests, the read speeds peaked at 2487.938MB/s, but the write speeds only reached 1894.07MB/s. These are still good numbers for a budget NVMe drive, but it is surprising to not see the peak write speed reached in this test. In terms of ramp-up, the Western Digital Blue SN550 NVMe SSD 1TB was a bit faster at reaching peak speeds compared to the previous generation SN500. Even so, smaller packet sizes up to 2KB showed speeds of under a hundred MB/s in both read and write. Only at the next step of 4KB and larger did we start seeing quite a bit faster numbers, with a 16KB size where the read and write speeds measured were over a thousand. This behavior and relative ramp up were similar to other drives like the Toshiba RC100 or the Gigabyte M.2. Compared to the Crucial P1 1TB, the WD Blue SN550 provided better read and write peak speeds, but was still slower in the smaller packet sizes.

Page Index
1. Introduction, Packaging, Specifications
2. A Closer Look, Test System
3. Benchmark: AIDA64 Disk Benchmark
4. Benchmark: ATTO Disk Benchmark
5. Benchmark: Crystal Disk Mark 6.0
6. Benchmark: HD Tach
7. Benchmark: HD Tune Pro 5.70
8. Benchmark: PassMark PerformanceTest 9.0
9. Benchmark: PCMark 7
10. Benchmark: PCMark 8
11. Conclusion