Average Bench: 32.3% (718th of 995)

Based on 1,315 user benchmarks.  Model: TOSHIBA MK2555GSX

Poor average bench

The Toshiba MK2555GSX 250GB averaged 67.6% 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 0.22MB/s
Avg. 4K Random Write Speed 0.98MB/s

Very good consistency

The range of scores (95th - 5th percentile) for the Toshiba MK2555GSX 250GB is just 19.2%. This is a relatively narrow range which indicates that the Toshiba MK2555GSX 250GB performs reasonably consistently under varying real world conditions.


Avg. Sequential Mixed IO Speed 43.2MB/s
Avg. Sequential Write Speed 56MB/s

Average Bench

(Based on 1,315 samples)
Min Avg Max
37.7 Read 56.7 72
37.1 Write 56 73.4
11.9 Mixed 43.2 69.2
38.8% 52 MB/s
Min Avg Max
0.09 4K Read 0.33 0.49
0.46 4K Write 0.98 1.2
0.09 4K Mixed 0.22 0.29
56.5% 0.51 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest HDD (mainstream) averages a speed of 100%
177GB free
Firmware: FG000D Max speed: SATA 2.0 300 MB/s
Read 67.8
Write 73.3
Mixed 62.6
51% 67.9 MB/s
4K Read 0.46
4K Write 1.09
4K Mixed 0.28
70% 0.61 MB/s
177GB free
Firmware: FG000D Max speed: SATA 2.0 300 MB/s
Read 70.4
Write 65.1
Mixed 60.4
49% 65.3 MB/s
4K Read 0.46
4K Write 1.1
4K Mixed 0.26
68% 0.61 MB/s
191GB free
Firmware: FG002C Max speed: SATA 2.0 300 MB/s
Read 66.3
Write 68.5
Mixed 69.6
51% 68.1 MB/s
4K Read 0.44
4K Write 1.14
4K Mixed 0.24
66% 0.61 MB/s
162GB free
Firmware: FG001A Max speed: SATA 1.0 150 MB/s
Read 55.7
Write 64.7
Mixed 59.9
45% 60.1 MB/s
4K Read 0.45
4K Write 1.09
4K Mixed 0.28
70% 0.61 MB/s
192GB free
Firmware: FG001J Max speed: SATA 2.0 300 MB/s
Read 59
Write 57.5
Mixed 56.2
43% 57.6 MB/s
4K Read 0.32
4K Write 1.12
4K Mixed 0.2
56% 0.54 MB/s
207GB free
Firmware: FG000D Max speed: SATA 2.0 300 MB/s
Read 57.1
Write 55.7
Mixed 30.8
35% 47.9 MB/s
4K Read 0.53
4K Write 1.16
4K Mixed 0.3
77% 0.66 MB/s
185GB free
Firmware: FG001M Max speed: SATA 2.0 300 MB/s
Read 32.2
Write 56.2
Mixed 49.1
35% 45.8 MB/s
4K Read 0.17
4K Write 1.13
4K Mixed 0.19
49% 0.49 MB/s
1,315 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 8,299,772 HDDs tested.


AmazonUS $359 mins
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Typical MK2555GSX 250GB Builds (Compare 795 builds) See popular component choices, score breakdowns and rankings.
Gaming 11%
Tree trunk
Desktop 26%
Workstation 14%
Tree trunk

System: Dell Inspiron 1545

EDIT WITH CUSTOM PC BUILDER Value: 33% - Below average Total price: $260

Popular MK2555GSX 250GB systems:

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Hard Drive Rankings (Price vs Performance) March 2018 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.
  • Fastest effective speed - Real World Speed measures performance for typical consumers.
  • Best value for money - Value for money is based on real world performance, price and capacity.


995 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

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AMD Ryzen 5 1600 $188AMD RX 480 $400Samsung 850 Pro 256GB $146
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Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $931SanDisk Extreme 32GB $23
Seagate Barracuda 2TB (2016) $60Corsair Vengeance LPX DDR4 3200 C16 2x8GB $216SanDisk Extreme 16GB $18
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