Average Bench: 29.8% (758th of 984)

more Based on 2,165 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 70.2% 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 0.38MB/s
Avg. 4K Random Write Speed 1.68MB/s

Very good consistency

The range of scores (95th - 5th percentile) for the WD WD2500KS-00MJB0 250GB is just 13.7%. 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 43.4MB/s
Avg. Sequential Write Speed 51.5MB/s

Average Bench

(Based on 2,165 samples)
Min Avg Max
36.7 Read 51.8 60.7
36.1 Write 51.5 61.5
18.7 Mixed 43.4 59.8
36.7% 48.9 MB/s
Min Avg Max
0.15 4K Read 0.53 0.74
0.57 4K Write 1.68 2.15
0.15 4K Mixed 0.38 0.51
95.2% 0.86 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest HDD (mainstream) averages a speed of 100%
205GB free
Firmware: 02.01C03 Max speed: SATA 2.0 300 MB/s
Read 60.7
Write 60.4
Mixed 59.8
45% 60.3 MB/s
4K Read 0.49
4K Write 1.59
4K Mixed 0.41
96% 0.83 MB/s
233GB free
Firmware: 02.01C03 Max speed: SATA 2.0 300 MB/s
Read 59.2
Write 60.9
Mixed 59.7
45% 59.9 MB/s
4K Read 0.73
4K Write 1.82
4K Mixed 0.47
117% 1.01 MB/s
180GB free
Firmware: 02.01C03 Max speed: SATA 2.0 300 MB/s
Read 53
Write 58.6
Mixed 51.3
41% 54.3 MB/s
4K Read 0.58
4K Write 1.74
4K Mixed 0.44
105% 0.92 MB/s
47GB free
Firmware: 02.0
Read 52.2
Write 55.2
Mixed 52.2
40% 53.2 MB/s
4K Read 0.39
4K Write 1.9
4K Mixed 0.31
86% 0.87 MB/s
121GB free
Firmware: 02.01C03 Max speed: SATA 2.0 300 MB/s
Read 52.8
Write 54.3
Mixed 52.7
40% 53.3 MB/s
4K Read 0.71
4K Write 1.62
4K Mixed 0.46
110% 0.93 MB/s
44GB free
Firmware: 02.0 Max speed: SATA 2.0 300 MB/s
Read 46.1
Write 60.9
Mixed 39.6
36% 48.9 MB/s
4K Read 0.44
4K Write 1.87
4K Mixed 0.47
105% 0.92 MB/s
42GB free
Firmware: 02.01C03 Max speed: SATA 2.0 300 MB/s
Read 43.5
Write 44.6
Mixed 44.7
33% 44.3 MB/s
4K Read 0.77
4K Write 1.87
4K Mixed 0.54
127% 1.06 MB/s
2,165 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 5,353,092 HDDs tested.


AmazonUS $75.004 mins ago.
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Typical WD2500KS-00MJB0 250GB Builds (Compare 7,906 builds) See popular component choices, score breakdowns and rankings.
Gaming 61%
Desktop 68%
Battle cruiser
Workstation 41%
Speed boat

Motherboard: Asrock Z77 Extreme4 - $260

EDIT WITH CUSTOM PC BUILDER Value: 68% - Good Total price: $1,164

Popular WD2500KS-00MJB0 250GB compatible motherboards:

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Welcome to our consumer Hard Drive comparison. We calculate effective speed which measures performance for typical consumers. Effective speed is adjusted by cost per GB to yield value for money. Calculated values don't always tell the whole picture so we check them against thousands of individual user ratings. The customizable table below combines these factors and more to bring you the definitive list of top HDDs. Share your opinion by voting. [HDrivePro]


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