Average Bench: 46.8% (370th of 1015)

Based on 563 user benchmarks.  Model: TOSHIBA MK6461GSY

Below average average bench

The Toshiba MK6461GSY 640GB averaged 53.1% 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 0.4MB/s
Avg. 4K Random Write Speed 1.45MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Toshiba MK6461GSY 640GB is 31.1%. This is a relatively narrow range which indicates that the Toshiba MK6461GSY 640GB performs reasonably consistently under varying real world conditions.


Avg. Sequential Mixed IO Speed 58MB/s
Avg. 4K Random Read Speed 0.42MB/s

Average Bench

(Based on 563 samples)
Min Avg Max
43 Read 81.6 106
46.3 Write 83.1 107
10.3 Mixed 58 102
42.8 SusWrite 75.7 103
55% 74.6 MB/s
Min Avg Max
0.13 4K Read 0.42 0.6
0.84 4K Write 1.45 1.8
0.15 4K Mixed 0.4 0.7
88.7% 0.76 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest HDD (mainstream) averages a speed of 100%
37GB free
Firmware: MJ000H
SusWrite @10s intervals: 71 59 72 75 72 80 MB/s
Read 87.7
Write 84.3
Mixed 25.8
SusWrite 71.4
49% 67.3 MB/s
4K Read 0.5
4K Write 1.8
4K Mixed 0.6
121% 0.97 MB/s
37GB free
Firmware: MJ000H
SusWrite @10s intervals: 71 62 72 75 71 79 MB/s
Read 87.5
Write 79.2
Mixed 26.5
SusWrite 71.5
48% 66.2 MB/s
4K Read 0.5
4K Write 1.7
4K Mixed 0.6
119% 0.93 MB/s
492GB free (System drive)
Firmware: MC000H
SusWrite @10s intervals: 61 53 68 69 50 47 MB/s
Read 76
Write 71.7
Mixed 31.8
SusWrite 58
43% 59.4 MB/s
4K Read 0.5
4K Write 1.3
4K Mixed 0.6
112% 0.8 MB/s
94GB free
Firmware: MC001D
SusWrite @10s intervals: 80 78 82 82 79 82 MB/s
Read 50
Write 54.8
Mixed 23.5
SusWrite 80.5
38% 52.2 MB/s
4K Read 0.5
4K Write 1.6
4K Mixed 0.6
117% 0.9 MB/s
563 MORE »

 Market Share (See Leaders)

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

Typical MK6461GSY 640GB Builds (Compare 3,025 builds) See popular component choices, score breakdowns and rankings.
Gaming 12%
Tree trunk
Desktop 44%
Speed boat
Workstation 26%

System: Dell System XPS L502X

EDIT WITH CUSTOM PC BUILDER Value: 40% - Below average Total price: $260

Popular MK6461GSY 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.

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]


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.
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Intel Core i5-9600K $200Nvidia RTX 2060 $324Samsung 850 Evo 120GB $150
Intel Core i7-9700K $360AMD RX 590 $180Samsung 860 Evo 250GB $55
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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