SSD Speed Test

[adamc03]

I recently bought WD Blue SN550 1TB NVMe SSD WD Blue SN550 1TB High-Performance M.2 Pcie NVMe SSD: Amazon.co.uk: Computers & Accessories

The speeds Western Digital claims it should be is read 2400 and Write 1950.

Crystal Disk mark gets 2433 Read and 1986 Write

 

AS SSD Benchmark gets 2211 and Write 1930.

 

Which one of these software is more likely to be right with its numbers, are theses numbers good for what Western Digital claims? 

[BondiBlue]

Seems fine to me. I just tested my own SN550 and got extremely similar numbers to yours apart from the random 4K Q32 read speeds. Mine got 1753 MB/s on that test, but it was very close in every other test. 

[Murasaki]

Numbers look normal. As to which is more accurate, who knows. Important thing is its working as it should.

[Guest]

Those claims should be read as "up to" or "theoretical" as a number of things impact your actual numbers including your own specs and temps. As others have said, you're very well in the ballpark.

[NewMaxx]

CrystalDiskMark is at Q8T1 (top) and Q1T1 (2nd) with AS SSD at Q1T1. Manufacturers usually quote QD32 speeds. In any case, results look good.