Average Bench: 97.4% (8th of 984)

Based on 297 user benchmarks.  Model: SEAGATE ST3300657SS

Excellent average bench

The Seagate Cheetah 15K.7 SAS 300GB averaged just 2.6% lower than the peak scores attained by the group leaders. This is an excellent result which ranks the Seagate Cheetah 15K.7 SAS 300GB near the top of the comparison list.


Avg. 4K Random Mixed IO Speed 0.84MB/s
Avg. 4K Random Write Speed 2.75MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Seagate Cheetah 15K.7 SAS 300GB is 34.2%. This is a relatively narrow range which indicates that the Seagate Cheetah 15K.7 SAS 300GB performs reasonably consistently under varying real world conditions.


Avg. Sequential Read Speed 169MB/s
Avg. Sequential Write Speed 170MB/s

Average Bench

(Based on 297 samples)
Min Avg Max
134 Read 169 193
126 Write 170 196
122 Mixed 163 191
126% 167 MB/s
Min Avg Max
0.63 4K Read 1.2 1.47
0.87 4K Write 2.75 3.68
0.49 4K Mixed 0.84 1.14
194% 1.6 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest HDD (mainstream) averages a speed of 100%
271GB free
Firmware: HPS1
Read 183
Write 196
Mixed 191
143% 190 MB/s
4K Read 1.27
4K Write 3.77
4K Mixed 0.92
225% 1.99 MB/s
271GB free
Firmware: HPS1
Read 182
Write 196
Mixed 191
143% 190 MB/s
4K Read 1.26
4K Write 3.34
4K Mixed 0.96
221% 1.85 MB/s
204GB free
Firmware: ES64
Read 193
Write 175
Mixed 189
140% 186 MB/s
4K Read 1.48
4K Write 1.27
4K Mixed 0.87
182% 1.21 MB/s
70GB free
Firmware: HPS1
Read 157
Write 159
Mixed 137
113% 151 MB/s
4K Read 0.92
4K Write 3.38
4K Mixed 0.85
196% 1.72 MB/s
2GB free
Firmware: HPS1
Read 121
Write 123
Mixed 117
91% 121 MB/s
4K Read 1.39
4K Write 3.44
4K Mixed 1.06
240% 1.96 MB/s
3GB free
Firmware: 0008
Read 113
Write 105
Mixed 96.2
78% 105 MB/s
4K Read 0.62
4K Write 1.45
4K Mixed 0.44
102% 0.84 MB/s
297 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 7,254,850 HDDs tested.


AmazonUS $4526 mins
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Typical Cheetah 15K.7 SAS 300GB Builds (Compare 1,352 builds) See popular component choices, score breakdowns and rankings.
Gaming 19%
Desktop 55%
Workstation 63%

System: HP Z800 Workstation

EDIT WITH CUSTOM PC BUILDER Value: 99% - Outstanding Total price: $90

Popular Cheetah 15K.7 SAS 300GB 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 (UBM).
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write and mixed IO.
  • - Checks include: 4k Align, NCQ, TRIM, SATA, USB & S.M.A.R.T.
  • - 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 highest voted in class.
  • - Find the best upgrades.
  • - Share your opinion by voting.
Hard Drive Rankings (Price vs Performance) January 2018 HDD Rankings.

Welcome to our consumer Hard Drive comparison. We calculate effective speed which measures performance for typical consumers. Effective speed is adjusted by cost per GB to yield value for money. Calculated values don't always tell the whole picture so we check them against thousands of individual user ratings. The customizable table below combines these factors and more to bring you the definitive list of top HDDs. Share your opinion by voting. [HDrivePro]


984 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.
Intel Core i7-7700K $280Nvidia GTX 1070 $430Samsung 850 Evo 250GB $90
AMD Ryzen 7 1700 $290Nvidia GTX 1060-6GB $275Samsung 850 Evo 500GB $140
Intel Core i5-7600K $210AMD RX 480 $400Samsung 850 Pro 256GB $110
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $205SanDisk Extreme 64GB $50
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $931SanDisk Extreme 32GB $22
Seagate Barracuda 7200.14 1TB $53Corsair Vengeance LPX DDR4 3200 C16 2x8GB $220SanDisk Ultra Fit 32GB $12
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