Average Bench: 97.4% (9th of 984)

Based on 250 user benchmarks.  Model: SEAGATE ST3300657SS

Excellent average bench

The Seagate Cheetah 15K.7 SAS 300GB averaged just 2.5% 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 2.79MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Seagate Cheetah 15K.7 SAS 300GB is 32.9%. 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 250 samples)
Min Avg Max
136 Read 169 193
126 Write 170 196
122 Mixed 163 191
126% 168 MB/s
Min Avg Max
0.59 4K Read 1.2 1.47
0.87 4K Write 2.79 3.68
0.49 4K Mixed 0.84 1.14
195% 1.61 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest HDD (mainstream) averages a speed of 100%
279GB free
Firmware: HPS1
Read 197
Write 192
Mixed 185
144% 191 MB/s
4K Read 1.44
4K Write 1.22
4K Mixed 0.64
153% 1.1 MB/s
279GB free
Firmware: HPS1
Read 193
Write 194
Mixed 191
145% 192 MB/s
4K Read 1.4
4K Write 3.61
4K Mixed 0.78
211% 1.93 MB/s
228GB free
Firmware: 0008
Read 173
Write 184
Mixed 175
134% 177 MB/s
4K Read 0.9
4K Write 3.36
4K Mixed 0.7
177% 1.65 MB/s
250 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 5,798,405 HDDs tested.


AmazonUS $44.996 mins ago.
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Typical Cheetah 15K.7 SAS 300GB Builds (Compare 1,022 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: 93% - Outstanding Total price: $95

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) October 2017 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 $299Nvidia GTX 1070 $386Samsung 850 Evo 250GB $95
AMD Ryzen 7 1700 $280AMD RX 480 $508Samsung 850 Pro 256GB $126
Intel Core i5-7600K $230Nvidia GTX 1060-6GB $265Samsung 850 Evo 500GB $140
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $158SanDisk Extreme 64GB $33
Seagate Barracuda 3TB (2016) $75G.SKILL Trident Z DDR4 3200 C14 4x16GB $920SanDisk Extreme 32GB $22
Seagate Barracuda 2TB (2016) $67Corsair Vengeance LPX DDR4 3200 C16 2x8GB $180SanDisk Ultra Fit 32GB $13
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