Average Bench: 46.1% (388th of 1015)

more Based on 1,724 user benchmarks.  Models: WDC WD6400AARS-00Y5B1, WDC WD64 00AARS-32Y5B1, WDC WD64 00AARS-003BB1, WDC WD6400AARS-00Y5B, WDC WD6400AARS-003BB1, WDC WD6400AARS-32Y5B1, WDC WD6400AARS-0, WDC WD64 00AARS-003BB, WDC WD6400AARS-00Z5B1, WDC WD64 00AARS-00Y5B, WDC WD64 00AARS-00Z5B1, WDC WD64 00AARS-00Y5B1, WDC WD6400AARS-00Z5B, WDC WD6400AARS-00MVWB0

Below average average bench

The WD WD6400AARS-00Y5B1 640GB averaged 53.9% 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 0.56MB/s
Avg. 4K Random Read Speed 0.8MB/s

Average consistency

The range of scores (95th - 5th percentile) for the WD WD6400AARS-00Y5B1 640GB is 43.7%. This is a relatively wide range which indicates that the WD WD6400AARS-00Y5B1 640GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sequential Mixed IO Speed 57.8MB/s
Avg. Sustained Write Speed 76.9MB/s
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Average Bench

(Based on 1,724 samples)
Min Avg Max
31.9 Read 83.6 112
25.7 Write 79 105
18.2 Mixed 57.8 85
24.5 SusWrite 76.9 106
54.8% 74.3 MB/s
Min Avg Max
0.2 4K Read 0.8 1.1
0.2 4K Write 1.22 1.8
0.2 4K Mixed 0.56 0.8
118% 0.86 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest HDD (mainstream) averages a speed of 100%
566GB free
Firmware: 80.00A80
SusWrite @10s intervals: 101 106 106 108 109 109 MB/s
Read 102
Write 101
Mixed 32.2
SusWrite 107
62% 85.3 MB/s
4K Read 0.8
4K Write 0.4
4K Mixed 0.3
74% 0.5 MB/s
267GB free
Firmware: 80.00A80
SusWrite @10s intervals: 86 90 90 91 91 91 MB/s
Read 102
Write 81.6
Mixed 36.3
SusWrite 89.8
56% 77.4 MB/s
4K Read 0.8
4K Write 0.7
4K Mixed 0.5
102% 0.67 MB/s
536GB free
Firmware: 80.00A80
SusWrite @10s intervals: 95 97 97 100 99 99 MB/s
Read 83.5
Write 85.3
Mixed 62.5
SusWrite 97.6
61% 82.2 MB/s
4K Read 0.8
4K Write 1.4
4K Mixed 0.6
126% 0.93 MB/s
410GB free
Firmware: 80.00A80
SusWrite @10s intervals: 86 87 89 89 88 88 MB/s
Read 90
Write 86
Mixed 60.5
SusWrite 87.9
60% 81.1 MB/s
4K Read 0.7
4K Write 1.1
4K Mixed 0.5
105% 0.77 MB/s
309GB free
Firmware: 80.00A80
SusWrite @10s intervals: 85 83 85 86 86 86 MB/s
Read 88.7
Write 83.5
Mixed 56
SusWrite 85
58% 78.3 MB/s
4K Read 0.9
4K Write 1.6
4K Mixed 0.7
145% 1.07 MB/s
298GB free
Firmware: 80.0
SusWrite @10s intervals: 71 74 75 75 74 74 MB/s
Read 92.3
Write 91.5
Mixed 66.8
SusWrite 73.6
60% 81.1 MB/s
4K Read 1.1
4K Write 1.2
4K Mixed 0.6
135% 0.97 MB/s
366GB free
Firmware: 80.00A80
SusWrite @10s intervals: 80 81 81 80 82 81 MB/s
Read 70.3
Write 64.7
Mixed 48.3
SusWrite 80.6
49% 66 MB/s
4K Read 0.9
4K Write 1.3
4K Mixed 0.7
139% 0.97 MB/s
1,724 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 21,746,444 HDDs tested.

Typical WD6400AARS-00Y5B1 640GB Builds (Compare 26,345 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 30%
Sail boat
Desktop
Desktop 44%
Speed boat
Workstation
Workstation 35%
Jet ski

Motherboard: Gigabyte GA-970A-DS3P - $92

EDIT WITH CUSTOM PC BUILDER Value: 44% - Average Total price: $447

Popular WD6400AARS-00Y5B1 640GB compatible motherboards:

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.

UserBenchmark of the month

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.
  • - Compare your components to the current market leaders.
  • - Explore your best upgrade options with a virtual PC build.
  • - Compare your in-game FPS to other users with your hardware.
  • - Share your opinion by voting.
Hard Drive Rankings (Price vs Performance) December 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

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
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Intel Core i5-9600K $200Nvidia RTX 2060 $324Samsung 850 Evo 120GB $150
Intel Core i7-9700K $360AMD RX 590 $180Samsung 850 Pro 512GB $230
HDDRAMUSB
Seagate Barracuda 1TB (2016) $37Corsair Vengeance LPX DDR4 3200 C16 2x8GB $80SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $34Corsair Vengeance LPX DDR4 3000 C15 2x8GB $58SanDisk Extreme 32GB $46
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $613SanDisk Extreme 16GB $24
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