Average Bench: 32.1% (731st of 1002)

Based on 1,494 user benchmarks.  Model: TOSHIBA MK2555GSX

Poor average bench

The Toshiba MK2555GSX 250GB averaged 67.9% 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.


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 44MB/s
Avg. Sequential Write Speed 55.6MB/s

Average Bench

(Based on 1,494 samples)
Min Avg Max
36.7 Read 56.2 71.5
37.4 Write 55.6 73.5
11.7 Mixed 44 69.6
38.8% 51.9 MB/s
Min Avg Max
0.1 4K Read 0.33 0.49
0.47 4K Write 0.98 1.19
0.09 4K Mixed 0.22 0.29
56.3% 0.51 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest HDD (mainstream) averages a speed of 100%
196GB free
Firmware: FG001A Max speed: SATA 2.0 300 MB/s
Read 65.5
Write 66.3
Mixed 64.5
49% 65.4 MB/s
4K Read 0.41
4K Write 0.9
4K Mixed 0.26
63% 0.53 MB/s
90GB free
Firmware: FG001M Max speed: SATA 2.0 300 MB/s
Read 61.4
Write 61
Mixed 14.1
33% 45.5 MB/s
4K Read 0.31
4K Write 1.11
4K Mixed 0.26
62% 0.56 MB/s
105GB free
Firmware: FG00 Max speed: SATA 2.0 300 MB/s
Read 51.1
Write 49.4
Mixed 49.3
38% 49.9 MB/s
4K Read 0.11
4K Write 0.17
4K Mixed 0.06
15% 0.12 MB/s
175GB free
Firmware: FG001A Max speed: SATA 2.0 300 MB/s
Read 49.4
Write 50.6
Mixed 11
27% 37 MB/s
4K Read 0.12
4K Write 0.93
4K Mixed 0.02
25% 0.36 MB/s
50GB free
Firmware: FG002C Max speed: SATA 2.0 300 MB/s
Read 42.1
Write 39.8
Mixed 10.1
22% 30.7 MB/s
4K Read 0.24
4K Write 0.94
4K Mixed 0.23
53% 0.47 MB/s
11GB free
Firmware: FG001M Max speed: SATA 2.0 300 MB/s
Read 38.8
Write 39.6
Mixed 38.2
29% 38.9 MB/s
4K Read 0.41
4K Write 1.02
4K Mixed 0.24
62% 0.55 MB/s
27GB free
Firmware: 1M Max speed: SATA 2.0 300 MB/s
Read 21.8
Write 33.7
Mixed 15
17% 23.5 MB/s
4K Read 0.17
4K Write 0.94
4K Mixed 0.14
40% 0.42 MB/s
1,494 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 9,647,199 HDDs tested.


AmazonUS $3511 mins
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Typical MK2555GSX 250GB Builds (Compare 949 builds) See popular component choices, score breakdowns and rankings.
Gaming 11%
Tree trunk
Desktop 26%
Workstation 13%
Tree trunk

System: Dell Inspiron 1545

EDIT WITH CUSTOM PC BUILDER Value: 31% - Below average Total price: $285

Popular MK2555GSX 250GB systems:

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  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write and mixed IO.
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Hard Drive Rankings (Price vs Performance) June 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.


1002 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.
AMD Ryzen 5 1600 $175Nvidia GTX 1070 $447Samsung 850 Evo 250GB $104
Intel Core i7-8700K $320Nvidia GTX 1060-6GB $250Samsung 850 Evo 500GB $123
Intel Core i5-8600K $239AMD RX 480 $280Samsung 850 Pro 256GB $116
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $177SanDisk Extreme 64GB $44
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $911SanDisk Extreme 32GB $30
Seagate Barracuda 2TB (2016) $59HyperX Fury DDR4 2133 C14 2x8GB $226SanDisk Ultra Fit 32GB $12
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