Average Bench: 38.9% (532nd of 1015)

more Based on 10,982 user benchmarks.  Models: WDC WD10S21X-24R1BT0-SSHD-8GB, WDC WD10S21X-24R, WDC WD10 S21X-24R1BT0, WDC WD10S21X-24R1BT0-SSH, WDC WD10S21X-24R1BT0, WDC WD10 S21X-24R1BT0-SSH

Poor average bench

The WD WD10S21X-24R1BT0-SSHD-8GB 1TB averaged 61.0% 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.

Strengths

Avg. 4K Random Mixed IO Speed 0.61MB/s
Avg. 4K Random Write Speed 1.68MB/s

Average consistency

The range of scores (95th - 5th percentile) for the WD WD10S21X-24R1BT0-SSHD-8GB 1TB is 42.6%. This is a relatively wide range which indicates that the WD WD10S21X-24R1BT0-SSHD-8GB 1TB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sequential Mixed IO Speed 43.4MB/s
Avg. Sustained Write Speed 57.3MB/s
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Average Bench

(Based on 10,982 samples)
Min Avg Max
19.2 Read 78.1 110
20.2 Write 69.6 104
15.2 Mixed 43.4 58.5
21.7 SusWrite 57.3 101
45.7% 62.1 MB/s
Min Avg Max
0.1 4K Read 0.46 0.6
0.4 4K Write 1.68 2.3
0.1 4K Mixed 0.61 0.8
118% 0.91 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest HDD (mainstream) averages a speed of 100%
881GB free (System drive)
Firmware: 03.01A01
SusWrite @10s intervals: 49 56 82 89 79 97 MB/s
Read 101
Write 57.4
Mixed 53.7
SusWrite 75.3
53% 71.9 MB/s
4K Read 0.5
4K Write 1.9
4K Mixed 0.7
134% 1.03 MB/s
564GB free (System drive)
Firmware: 03.01A01
SusWrite @10s intervals: 50 43 37 53 44 52 MB/s
Read 99.3
Write 76
Mixed 48.8
SusWrite 46.3
50% 67.6 MB/s
4K Read 0.5
4K Write 1.7
4K Mixed 0.7
130% 0.97 MB/s
469GB free (System drive)
Firmware: 03.01A02
SusWrite @10s intervals: 67 46 54 48 64 67 MB/s
Read 87.5
Write 89.3
Mixed 51.5
SusWrite 57.7
53% 71.5 MB/s
4K Read 0.4
4K Write 1.3
4K Mixed 0.7
118% 0.8 MB/s
386GB free (System drive)
Firmware: 03.01A01
SusWrite @10s intervals: 48 33 37 56 59 61 MB/s
Read 91.5
Write 66.6
Mixed 48.8
SusWrite 48.8
47% 63.9 MB/s
4K Read 0.5
4K Write 1.8
4K Mixed 0.7
132% 1 MB/s
859GB free (System drive)
Firmware: 03.0
SusWrite @10s intervals: 39 37 45 44 44 52 MB/s
Read 76.4
Write 85.7
Mixed 48.5
SusWrite 43.5
47% 63.5 MB/s
4K Read 0.5
4K Write 1.8
4K Mixed 0.6
121% 0.97 MB/s
268GB free (System drive)
Firmware: 03.01A02
SusWrite @10s intervals: 26 29 28 29 34 33 MB/s
Read 76
Write 76.3
Mixed 31.5
SusWrite 29.9
39% 53.4 MB/s
4K Read 0.1
4K Write 1.6
4K Mixed 0.3
67% 0.67 MB/s
858GB free (System drive)
Firmware: 03.01A01
SusWrite @10s intervals: 42 36 40 41 36 36 MB/s
Read 33.4
Write 37.1
Mixed 15.3
SusWrite 38.3
23% 31 MB/s
4K Read 0.1
4K Write 0.5
4K Mixed 0.1
24% 0.23 MB/s
10,982 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 18,360,214 HDDs tested.

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Hard Drive Rankings (Price vs Performance) July 2019 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]

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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.

 Comments

Added n/a ago.

Terrible

10 months ago.

Took this out of seldom used Lenovo Y50 to use in Lenovo Y530, with knowledge that it has horrible performance. It did not disappoint with that. Planning on using this as external and get others instead..


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opinion?
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.
CPUGPUSSD
Intel Core i7-8700K $350Nvidia GTX 1070 $400Samsung 850 Evo 250GB $104
AMD Ryzen 5 2600 $127Nvidia GTX 1060-6GB $250Samsung 850 Evo 500GB $103
AMD Ryzen 7 2700X $248Nvidia GTX 1080-Ti $709Samsung 850 Pro 256GB $97
HDDRAMUSB
Seagate Barracuda 1TB (2016) $40Corsair Vengeance LPX DDR4 3000 C15 2x8GB $68SanDisk Extreme 64GB $128
Seagate Barracuda 3TB (2016) $70G.SKILL Trident Z DDR4 3200 C14 4x16GB $606SanDisk Extreme 32GB $48
WD Blue 1TB (2012) $37Corsair Vengeance LPX DDR4 3200 C16 2x8GB $78SanDisk Ultra Fit 32GB $12
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