Average Bench: 49.2% (324th of 1015)

Based on 9,137 user benchmarks.  Model: SAMSUNG HD642JJ

Below average average bench

The Samsung HD642JJ 640GB averaged 50.8% 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 0.96MB/s
Avg. 4K Random Write Speed 2.33MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Samsung HD642JJ 640GB is 31.9%. This is a relatively narrow range which indicates that the Samsung HD642JJ 640GB performs reasonably consistently under varying real world conditions.

Weaknesses

Avg. Sequential Mixed IO Speed 54.8MB/s
Avg. Sequential Write Speed 74.4MB/s
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Average Bench

(Based on 9,137 samples)
Min Avg Max
50.9 Read 87.8 112
34.9 Write 74.4 109
39.1 Mixed 54.8 63.6
45.6 SusWrite 83.2 112
55.2% 75 MB/s
Min Avg Max
0.5 4K Read 0.67 0.8
1.6 4K Write 2.33 3
0.7 4K Mixed 0.96 1.1
178% 1.32 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest HDD (mainstream) averages a speed of 100%
529GB free
Firmware: 1AA01113
SusWrite @10s intervals: 112 94 93 96 94 95 MB/s
Read 108
Write 115
Mixed 62.8
SusWrite 97.4
70% 95.9 MB/s
4K Read 0.7
4K Write 2.5
4K Mixed 1
187% 1.4 MB/s
16GB free
Firmware: 1AA01112
SusWrite @10s intervals: 106 105 106 94 86 94 MB/s
Read 100
Write 81.5
Mixed 57.3
SusWrite 98.4
62% 84.3 MB/s
4K Read 0.7
4K Write 3.1
4K Mixed 1.1
209% 1.63 MB/s
567GB free (System drive)
Firmware: 1AA01113
SusWrite @10s intervals: 70 21 43 79 103 104 MB/s
Read 111
Write 87.2
Mixed 47
SusWrite 70
58% 78.8 MB/s
4K Read 0.6
4K Write 2.2
4K Mixed 1
177% 1.27 MB/s
330GB free
Firmware: 1AA01113
SusWrite @10s intervals: 96 95 94 96 96 96 MB/s
Read 74
Write 83
Mixed 53.3
SusWrite 95.3
56% 76.4 MB/s
4K Read 0.7
4K Write 1.5
4K Mixed 0.9
157% 1.03 MB/s
98GB free
Firmware: 1AA01118
SusWrite @10s intervals: 65 64 66 65 66 65 MB/s
Read 74.3
Write 79.3
Mixed 51.2
SusWrite 65.2
50% 67.5 MB/s
4K Read 0.7
4K Write 1.8
4K Mixed 1
174% 1.17 MB/s
9,137 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 33,221,365 HDDs tested.

 Prices

AmazonUS $409 mins
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Typical HD642JJ 640GB Builds (Compare 444 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 10%
Tree trunk
Desktop
Desktop 64%
Destroyer
Workstation
Workstation 9%
Tree trunk

System: Dell Studio XPS 435MT

EDIT WITH CUSTOM PC BUILDER Value: 58% - Above average Total price: $402

Popular HD642JJ 640GB systems:

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.

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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 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]

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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
Intel Core i5-9600K $190Nvidia GTX 1660S (Super) $240Crucial MX500 250GB $34
Intel Core i5-9400F $165Nvidia RTX 3070 $500Samsung 850 Evo 120GB $78
Intel Core i5-10600K $268Nvidia GTX 1650S (Super) $190Samsung 860 Evo 250GB $50
HDDRAMUSB
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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