Average Bench: 32.6% (669th of 1015)

more Based on 2,839 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 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 67.3% 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 0.54MB/s
Avg. 4K Random Write Speed 1.28MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the WD Blue 2.5" 640GB (2009) is 35.9%. This is a relatively wide range which indicates that the WD Blue 2.5" 640GB (2009) performs inconsistently under varying real world conditions.


Avg. Sequential Mixed IO Speed 34.2MB/s
Avg. Sustained Write Speed 53MB/s

Average Bench

(Based on 2,839 samples)
Min Avg Max
13.1 Read 60.6 85.4
12.8 Write 57 83.1
11 Mixed 34.2 49.5
17 SusWrite 53 81.4
37.6% 51.2 MB/s
Min Avg Max
0.1 4K Read 0.4 0.5
0.4 4K Write 1.28 1.7
0.1 4K Mixed 0.54 0.7
100% 0.74 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest HDD (mainstream) averages a speed of 100%
386GB free
Firmware: 01.01A01
SusWrite @10s intervals: 70 72 74 73 74 74 MB/s
Read 79.2
Write 75.3
Mixed 40.5
SusWrite 72.7
49% 66.9 MB/s
4K Read 0.5
4K Write 1.6
4K Mixed 0.7
128% 0.93 MB/s
403GB free (System drive)
Firmware: 02.01A02
SusWrite @10s intervals: 25 16 24 19 25 40 MB/s
Read 79.8
Write 76.4
Mixed 51.3
SusWrite 24.7
43% 58.1 MB/s
4K Read 0.5
4K Write 1.2
4K Mixed 0.6
110% 0.77 MB/s
33GB free
Firmware: 01.01A02
SusWrite @10s intervals: 48 47 47 44 48 47 MB/s
Read 52.5
Write 50.5
Mixed 29.3
SusWrite 46.8
33% 44.8 MB/s
4K Read 0.5
4K Write 1
4K Mixed 0.6
106% 0.7 MB/s
33GB free
Firmware: 01.01A02
SusWrite @10s intervals: 48 47 46 45 45 47 MB/s
Read 51.1
Write 49
Mixed 31.1
SusWrite 46.5
33% 44.4 MB/s
4K Read 0.5
4K Write 1.1
4K Mixed 0.6
108% 0.73 MB/s
2,839 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 19,896,197 HDDs tested.


AmazonUS $651 min
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Typical Blue 2.5" 640GB (2009) Builds (Compare 10,965 builds) See popular component choices, score breakdowns and rankings.
Gaming 12%
Tree trunk
Desktop 43%
Speed boat
Workstation 18%

System: HP Pavilion dv6 Notebook PC

EDIT WITH CUSTOM PC BUILDER Value: 36% - Below average Total price: $270

Popular Blue 2.5" 640GB (2009) systems:

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Hard Drive Rankings (Price vs Performance) September 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]


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 i5-9400F $140Nvidia GTX 1660 $220Samsung 850 Evo 250GB $70
Intel Core i5-9600K $225Nvidia GTX 1660-Ti $278Samsung 850 Evo 500GB $105
AMD Ryzen 5 3600 $195Nvidia RTX 2060S (Super) $429Samsung 850 Pro 256GB $230
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3000 C15 2x8GB $70SanDisk Extreme 64GB $88
WD Blue 1TB (2012) $37G.SKILL Trident Z DDR4 3200 C14 4x16GB $606SanDisk Extreme 32GB $48
Seagate Barracuda 3TB (2016) $64Corsair Vengeance LPX DDR4 3200 C16 2x8GB $73SanDisk Extreme 16GB $24
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