Average Bench: 34.6% (604th of 1015)

more Based on 4,266 user benchmarks.  Models: WDC WD6400BEVT-22A0RT0, WDC WD64 00BEVT-00A0R, WDC WD6400BEVT-11A0RT0, WDC WD6400BEVT-8, WDC WD6400BEVT-75A0RT0, WDC WD64 00BEVT-80A0RT1, WDC WD64 00BEVT-80A0RT0, WDC WD64 00BEVT-75A0RT0, WDC WD6400BEVT-80A0R, WDC WD6400BEVT-80A0RT1, WDC WD6400BEVT-80A0RT0, WDC WD6400BEVT-75A0R, WDC WD6400BEVT-00A0RT0, WDC WD64 00BEVT-60A0R, WDC WD6400BEVT-00A0R, WDC WD64 00BEVT-22A0R, WDC WD6400BEVT-16A0R, WDC WD64 00BEVT-00A0RT0, WDC WD6400BEVT-24A0RT0, WDC WD6400BEVT-00HXZT0, WDC WD64 00BEVT-22A0RT0, WDC WD6400BEVT-16A0RT0, WDC WD6400BEVT-2, WDC WD64 00BEVT-80A0R, WDC WD6400BEVT-60A0R, WDC WD6400BEVT-60A0RT0, WDC WD64 00BEVT-60A0RT0, WDC WD6400BEVT-0, WDC WD6400BEVT-24A0R, WDC WD6400BEVT-22A0R, WDC WD6400BEVT-6

Poor average bench

The WD Blue 2.5" 640GB (2009) averaged 65.3% 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 0.56MB/s
Avg. 4K Random Write Speed 1.33MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the WD Blue 2.5" 640GB (2009) is 33.7%. This is a relatively narrow range which indicates that the WD Blue 2.5" 640GB (2009) performs reasonably consistently under varying real world conditions.


Avg. Sequential Mixed IO Speed 35.9MB/s
Avg. Sustained Write Speed 56MB/s

Average Bench

(Based on 4,266 samples)
Min Avg Max
19.5 Read 64.4 84.9
15.9 Write 60.1 82.2
12.8 Mixed 35.9 50.2
17.1 SusWrite 56 82.1
39.7% 54.1 MB/s
Min Avg Max
0.1 4K Read 0.42 0.5
0.4 4K Write 1.33 1.75
0.1 4K Mixed 0.56 0.75
104% 0.77 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest HDD (mainstream) averages a speed of 100%
307GB free
Firmware: 02.01A02
SusWrite @10s intervals: 66 66 68 68 67 66 MB/s
Read 66.8
Write 62.2
Mixed 41.5
SusWrite 66.9
44% 59.3 MB/s
4K Read 0.5
4K Write 1.1
4K Mixed 0.6
108% 0.73 MB/s
561GB free (System drive)
Firmware: 01.01A01
SusWrite @10s intervals: 40 69 78 54 65 79 MB/s
Read 55.7
Write 62.2
Mixed 36.6
SusWrite 64.2
40% 54.7 MB/s
4K Read 0.5
4K Write 1.5
4K Mixed 0.7
126% 0.9 MB/s
551GB free (System drive)
Firmware: 01.01A01
SusWrite @10s intervals: 21 17 17 19 20 36 MB/s
Read 71.4
Write 43.9
Mixed 20.7
SusWrite 21.6
29% 39.4 MB/s
4K Read 0.2
4K Write 0.4
4K Mixed 0.1
27% 0.23 MB/s
4,266 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 33,240,535 HDDs tested.


AmazonUS $6210 mins
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Typical Blue 2.5" 640GB (2009) Builds (Compare 731 builds) See popular component choices, score breakdowns and rankings.
Gaming 2%
Tree trunk
Desktop 42%
Speed boat
Workstation 2%
Tree trunk

System: Acer Aspire 5742G

EDIT WITH CUSTOM PC BUILDER Value: 15% - Very poor Total price: $20

Popular Blue 2.5" 640GB (2009) systems:

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Hard Drive Rankings (Price vs Performance) December 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 RTX 3070 $500Crucial MX500 250GB $34
Intel Core i5-9400F $165Nvidia GTX 1660S (Super) $240Samsung 850 Evo 120GB $78
Intel Core i5-10600K $268Nvidia GTX 1650S (Super) $190Samsung 860 Evo 250GB $50
Seagate Barracuda 1TB (2016) $43Corsair Vengeance LPX DDR4 3200 C16 2x8GB $64SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $40Corsair Vengeance LPX DDR4 3000 C15 2x8GB $69SanDisk Extreme 32GB $28
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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