Page 5 - Benchmark: Crystal Disk Mark 8.0
About Crystal Disk Mark
- Measure Sequential and Random Performance (Read/Write/Mix)
- Peak/Real World Performance Profile
From: Developer's Page
Crystal Disk Mark 8.0 is in the spotlight. Just a bit of background information, higher capacity drives tend to perform a little better in these tests. The ability of a controller and flash memory to deliver high IOPS will provide huge benefits to the score as well. The WD_BLACK SN770 NVMe SSD 1TB is rated at up to 740,000 IOPS read and up to 800,000 IOPS write, which is good. As manufacturer peak read and write performance ratings are usually achievable using Crystal Disk Mark, whether a drive lives up to its marketing claims or not can be validated by this program.
Western Digital claims the SN770 1TB's maximum read and maximum write are pinned at 5150MB/s and 4900MB/s, respectively. Looking at the read and write results of all four sections, the SN770 1TB was a bit behind in the linear read and write section against performance PCIe 4.0 NVMe drives, but the numbers were bang on compared to the specifications and expected given this is a budget drive. It performed better than all PCIe 3.0-based drives in the Seq1M Q1T1 read test, and the write results were better than anyone else, including the company's own flagship SN850 1TB.
In the RND4K Q32T1 tests, I do not know what is going on here, but it dominated everyone else. I actually retested all the PCIe 4.0-based NVMe drives as a result, because the SN770 results were too good. I think there were some OS-level enhancements that improved some of these results, but even with the new numbers, the SN770 absolutely dominated without explanation. Lastly, in the RND4K Q1T1 segment, we see the exact same pattern, where the SN770 took the lead or absolutely dominated. I will let you make your own comparisons in our list of NVMe SSDs in the graphs above.
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 8.0
6. Benchmark: HD Tune Pro 5.70
7. Benchmark: PassMark PerformanceTest 10
8. Benchmark: PCMark 10
9. Benchmark: 3DMark
10. Conclusion
