Average Bench: 48.3% (343rd of 1015)

Based on 6,253 user benchmarks.  Model: SAMSUNG HD642JJ

Below average average bench

The Samsung HD642JJ 640GB averaged 51.7% 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 0.95MB/s
Avg. 4K Random Write Speed 2.26MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Samsung HD642JJ 640GB is 34.1%. 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 53.9MB/s
Avg. Sequential Write Speed 73.2MB/s
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Average Bench

(Based on 6,253 samples)
Min Avg Max
47.4 Read 86.3 112
32.2 Write 73.2 111
37.1 Mixed 53.9 62.9
44.3 SusWrite 81.5 111
54.2% 73.7 MB/s
Min Avg Max
0.5 4K Read 0.67 0.8
1.1 4K Write 2.26 2.9
0.5 4K Mixed 0.95 1.2
176% 1.3 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest HDD (mainstream) averages a speed of 100%
596GB free
Firmware: 1AA01117
SusWrite @10s intervals: 108 119 120 119 119 119 MB/s
Read 117
Write 122
Mixed 60.5
SusWrite 117
76% 104 MB/s
4K Read 0.7
4K Write 3.1
4K Mixed 1.1
209% 1.63 MB/s
406GB free
Firmware: 1AA01113
SusWrite @10s intervals: 109 111 112 112 113 112 MB/s
Read 107
Write 112
Mixed 64.5
SusWrite 111
72% 98.7 MB/s
4K Read 0.7
4K Write 2.4
4K Mixed 1
185% 1.37 MB/s
41GB free
Firmware: 1AA01117
SusWrite @10s intervals: 110 110 111 111 111 110 MB/s
Read 108
Write 50.8
Mixed 64.2
SusWrite 110
61% 83.2 MB/s
4K Read 0.7
4K Write 2.5
4K Mixed 1
187% 1.4 MB/s
466GB free
Firmware: 1AA01113
SusWrite @10s intervals: 101 101 101 103 103 102 MB/s
Read 96.7
Write 95
Mixed 60.2
SusWrite 102
65% 88.4 MB/s
4K Read 0.7
4K Write 2.3
4K Mixed 0.9
172% 1.3 MB/s
543GB free (System drive)
Firmware: 1AA01109
SusWrite @10s intervals: 83 82 83 94 52 87 MB/s
Read 115
Write 27.8
Mixed 55.6
SusWrite 80.1
51% 69.7 MB/s
4K Read 0.7
4K Write 1.1
4K Mixed 0.9
150% 0.9 MB/s
47GB free
Firmware: 1AA01110
SusWrite @10s intervals: 92 82 78 89 81 84 MB/s
Read 96
Write 97.3
Mixed 58.5
SusWrite 84.5
62% 84.1 MB/s
4K Read 0.7
4K Write 2.6
4K Mixed 1.1
200% 1.47 MB/s
472GB free
Firmware: 1AA01112
SusWrite @10s intervals: 87 82 87 86 86 87 MB/s
Read 94.5
Write 69.5
Mixed 55.7
SusWrite 85.7
56% 76.3 MB/s
4K Read 0.7
4K Write 2.8
4K Mixed 1.1
203% 1.53 MB/s
6,253 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 21,736,513 HDDs tested.

 Prices

AmazonUS $3814 mins
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Typical HD642JJ 640GB Builds (Compare 1,154 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 15%
Tree trunk
Desktop
Desktop 45%
Speed boat
Workstation
Workstation 23%
Surfboard

System: Dell Studio XPS 435MT

EDIT WITH CUSTOM PC BUILDER Value: 40% - Below average Total price: $319

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 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
Intel Core i5-9400F $145Nvidia GTX 1660S (Super) $244Crucial MX500 250GB $44
Intel Core i5-9600K $200Nvidia RTX 2060 $324Samsung 850 Evo 120GB $150
Intel Core i7-9700K $360AMD RX 590 $180Samsung 860 Evo 250GB $55
HDDRAMUSB
Seagate Barracuda 1TB (2016) $32Corsair 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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