75points

Samsung 980 Pro 1TB

79points

Western Digital WD Black SN850X 1TB

Comparison winner
Western Digital WD Black SN850X 1TB
vs
vs

26 facts in comparison

Samsung 980 Pro 1TB vs Western Digital WD Black SN850X 1TB

Samsung 980 Pro 1TB
Western Digital WD Black SN850X 1TB

Why is Samsung 980 Pro 1TB better than Western Digital WD Black SN850X 1TB?

  • 200000 IOPS faster random read speed
    ?

    1000000 IOPSvs800000 IOPS
  • Has an integrated heatsink
    ?

Why is Western Digital WD Black SN850X 1TB better than Samsung 980 Pro 1TB?

  • 1300 MB/s faster sequential write speed
    ?

    6300 MB/svs5000 MB/s
  • 100000 IOPS faster random write speed
    ?

    1100000 IOPSvs1000000 IOPS
  • 925MB/s faster sequential write (UserBenchmark)
    ?

    3782MB/svs2857MB/s
  • 0.25million hours longer MTBF
    ?

    1.75million hoursvs1.5million hours
  • 2.25x more controller channels
    ?

    9vs4
  • 956MB/s faster sequential read (UserBenchmark)
    ?

    3670MB/svs2714MB/s
  • 14372 higher PassMark result
    ?

    47701vs33329

Which are the most popular comparisons?

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User reviews

Overall rating

Samsung 980 Pro 1TB
9.0
2 User reviews
Samsung 980 Pro 1TB
9.0/10
2 User reviews
Western Digital WD Black SN850X 1TB
0 User reviews
Western Digital WD Black SN850X 1TB
0 User reviews

Features

Value for money

8.5/10
2 votes
No reviews yet
 

Gaming

10.0/10
1 votes
No reviews yet
 

Performance

9.5/10
2 votes
No reviews yet
 

Speeds

9.5/10
2 votes
No reviews yet
 

Reliability

8.5/10
2 votes
No reviews yet
 

Comments

Saurav

Saurav

1 year ago

8 / 10

Very good

Saurav

Saurav

1 year ago

8 / 10

1 users found this helpful
Anh

Anh

1 year ago

10 / 10

good for ps5

Anh

Anh

1 year ago

10 / 10

0 users found this helpful

Read speed

sequential read speed

7000 MB/s

7300 MB/s

This is the maximum sequential read speed according to the manufacturer. High sequential read speeds are most useful when the system is reading very large files (such as videos) from the SSD.
random read speed

1000000 IOPS

800000 IOPS

This is the maximum random read speed according to the manufacturer. It is measured in IOPS (Input/Output Operations Per Second) and is a good indication of the read performance of the SSD in day-to-day usage.

Write speed

sequential write speed

5000 MB/s

6300 MB/s

This is the maximum sequential write speed according to the manufacturer. High sequential write speeds are most useful when the system is writing very large files (such as videos) to the SSD.
random write speed

1000000 IOPS

1100000 IOPS

This is the maximum random write speed according to the manufacturer. It is measured in IOPS (Input/Output Operations Per Second) and is a good indication of the write performance of the SSD in day-to-day usage.

Benchmarks

The sequential write speed benchmark gives an indication of the SSD performance when writing large files. The value given here is the average result calculated from user-submitted scores. Source: UserBenchmark.
The sequential read speed benchmark gives an indication of the SSD performance when reading large files. The value given here is the average result calculated from user-submitted scores. Source: UserBenchmark.
random write speed (UserBenchmark)

158MB/s

Unknown. Help us by suggesting a value. (Western Digital WD Black SN850X 1TB)

The random write speed benchmark gives an indication of the everyday performance of the SSD. The value given here is the average result calculated from user-submitted scores. Source: UserBenchmark.
random read speed (UserBenchmark)

72.1MB/s

Unknown. Help us by suggesting a value. (Western Digital WD Black SN850X 1TB)

The random read speed benchmark gives an indication of the everyday performance of the SSD. The value given here is the average result calculated from user-submitted scores. Source: UserBenchmark.
PassMark result

33329

47701

The PassMark benchmark measures the overall performance of the SSD based on read speeds, write speeds, and seek times. The value given is an average based on user-submitted results.

General info

type

M2

M2

The type of SSD.
SSD cache

DRAM cache

DRAM cache

SSDs with a DRAM cache utilise high-speed RAM as a cache. This results in higher performance than DRAM-less SSDs, which use a slower NAND cache or the system’s RAM (HMB).
Is an NVMe SSD
Samsung 980 Pro 1TB
Western Digital WD Black SN850X 1TB
NVMe SSDs use the PCIe interface, which has a higher bandwidth than the SATA interface. This results in much faster read/write speeds compared to SSDs which use the SATA interface.
NVMe version

Unknown. Help us by suggesting a value. (Samsung 980 Pro 1TB)

Unknown. Help us by suggesting a value. (Western Digital WD Black SN850X 1TB)

The version of NVMe that the SSD is using.
internal storage

1000GB

1000GB

The internal storage refers to the built-in storage space available in a device for system data, apps, and user-generated data. With a large amount of internal storage, you can save more files and apps on your device.
The storage type determines how many bits of data are written to each memory cell. These storage types include SLC (one bit per cell), MLC (two bits per cell), and TLC (three bits per cell). The less bits that are written to each cell, the greater the speed and reliability.
Peripheral Component Interconnect Express (PCIe) is a high-speed interface standard for connecting components, such as graphics cards and SSDs, to a motherboard. Newer versions can support more bandwidth and deliver better performance.
The controller is a processor that manages the functions of the SSD. The number of channels refers to the number of storage chips that this controller can access at once. Typically speaking, the more channels that the SSD controller has, the greater the performance.
Terabytes Written (TBW) is a measurement of the SSD's endurance, and often refers to the manufacturer's warranty. A higher TBW can be an indication of greater reliability over time.

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