Average Bench: 28.6% (773rd of 1015)

more Based on 6,141 user benchmarks.  Models: WDC WD2500KS-00MJB0, WDC WD25 00KS-00MJB1, WDC WD25 00KS-00MJB0, WDC WD2500KS-22MJB0, WDC WD2500KS-00MJB1, WDC WD25 00KS-22MJB0, WDC WD2500KS-00M, WDC WD2500KS-22M

Very poor average bench

The WD WD2500KS-00MJB0 250GB averaged 71.3% lower than the peak scores attained by the group leaders. This isn't a great result which indicates that there are much faster alternatives on the comparison list.


Avg. 4K Random Mixed IO Speed 0.91MB/s
Avg. 4K Random Write Speed 1.84MB/s

Very good consistency

The range of scores (95th - 5th percentile) for the WD WD2500KS-00MJB0 250GB is just 17.2%. This is a relatively narrow range which indicates that the WD WD2500KS-00MJB0 250GB performs reasonably consistently under varying real world conditions.


Avg. Sequential Mixed IO Speed 40.1MB/s
Avg. Sustained Write Speed 47.9MB/s

Average Bench

(Based on 6,141 samples)
Min Avg Max
33 Read 51.3 62
28.8 Write 49.4 61.3
26 Mixed 40.1 48
25.8 SusWrite 47.9 61.2
34.9% 47.2 MB/s
Min Avg Max
0.3 4K Read 0.62 0.7
1.1 4K Write 1.84 2.3
0.5 4K Mixed 0.91 1.1
161% 1.12 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest HDD (mainstream) averages a speed of 100%
79GB free
Firmware: 02.01C03
SusWrite @10s intervals: 58 61 61 62 61 61 MB/s
Read 61.5
Write 58.5
Mixed 45
SusWrite 60.5
42% 56.4 MB/s
4K Read 0.7
4K Write 1.9
4K Mixed 1.1
187% 1.23 MB/s
85GB free
Firmware: 02.01C03
SusWrite @10s intervals: 56 56 58 58 58 58 MB/s
Read 52.9
Write 51.5
Mixed 44
SusWrite 57.3
38% 51.4 MB/s
4K Read 0.7
4K Write 2.1
4K Mixed 1
179% 1.27 MB/s
210GB free (System drive)
Firmware: 02.01C03
SusWrite @10s intervals: 36 41 35 37 46 49 MB/s
Read 52.3
Write 47.8
Mixed 38.7
SusWrite 40.5
33% 44.8 MB/s
4K Read 0.5
4K Write 1.6
4K Mixed 1
162% 1.03 MB/s
229GB free
Firmware: 02.01C03
SusWrite @10s intervals: 12 12 12 12 12 12 MB/s
Read 65
Write 11.5
Mixed 17.9
SusWrite 11.9
20% 26.6 MB/s
4K Read 0.7
4K Write 0.6
4K Mixed 0.5
96% 0.6 MB/s
6,141 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 29,523,456 HDDs tested.


AmazonUS $784 mins
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Typical WD2500KS-00MJB0 250GB Builds (Compare 15,650 builds) See popular component choices, score breakdowns and rankings.
Gaming 2%
Tree trunk
Desktop 65%
Workstation 2%
Tree trunk

Disqualified System: bin bin

EDIT WITH CUSTOM PC BUILDER Value: 74% - Very good Total price: $216

Popular WD2500KS-00MJB0 250GB systems:

How Fast Is Your HDD? (Bench your build) Size up your PC in less than a minute.

Welcome to our freeware PC speed test tool. UserBenchmark will test your PC and compare the results to other users with the same components. You can quickly size up your PC, identify hardware problems and explore the best upgrades.

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How it works

  • - Download and run UserBenchMark.
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write, sustained write and mixed IO.
  • - RAM tests include: single/multi core bandwidth and latency.
  • - Reports are generated and presented on userbenchmark.com.
  • - Identify the strongest components in your PC.
  • - See speed test results from other users.
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  • - Share your opinion by voting.
Hard Drive Rankings (Price vs Performance) August 2020 HDD Rankings.

We calculate effective speed which measures performance for typical consumers. Effective speed is adjusted by current cost per GB to yield value for money. Our calculated values are checked against thousands of individual user ratings. The customizable table below combines these factors to bring you the definitive list of top HDDs. [HDrivePro]


Group Test Results

  • Best user rated - User sentiment trumps benchmarks for this comparison.
  • Best value for money - Value for money is based on real world performance.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.


1015 Drives (Compared) Thousands of user benchmarks compiled into one comparison list.

See how consistently different HDDs perform with varying real world conditions. The charts also illustrate overall performance, popularity and rank.

 Frequently Asked Questions

 Best User Rated

The Best.
Intel Core i5-9600K $195Nvidia GTX 1660S (Super) $230Crucial MX500 250GB $46
Intel Core i5-9400F $156Nvidia GTX 1650S (Super) $170Samsung 850 Evo 120GB $78
Intel Core i7-9700K $335Nvidia RTX 2070S (Super) $510Samsung 860 Evo 250GB $50
Seagate Barracuda 1TB (2016) $42Corsair Vengeance LPX DDR4 3200 C16 2x8GB $60SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $34Corsair Vengeance LPX DDR4 3000 C15 2x8GB $69SanDisk Extreme 32GB $46
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $681SanDisk Extreme 16GB $24
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