Average Bench: 45.7% (398th of 1015)

Based on 1,378 user benchmarks.  Models: ST3750630AS, ST375063 ST3750630AS, ST375063 0AS

Below average average bench

The Seagate ST3750630AS 750GB averaged 54.3% 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 0.56MB/s
Avg. 4K Random Read Speed 0.49MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Seagate ST3750630AS 750GB is 32.9%. This is a relatively narrow range which indicates that the Seagate ST3750630AS 750GB performs reasonably consistently under varying real world conditions.


Avg. Sequential Mixed IO Speed 42.5MB/s
Avg. Sequential Write Speed 55MB/s

Average Bench

(Based on 1,378 samples)
Min Avg Max
41.4 Read 81.8 105
11 Write 55 100
18 Mixed 42.5 53.8
38.5 SusWrite 77.5 104
47.1% 64.2 MB/s
Min Avg Max
0.3 4K Read 0.49 0.7
0.7 4K Write 1 1.59
0.31 4K Mixed 0.56 0.8
101% 0.68 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest HDD (mainstream) averages a speed of 100%
669GB free (System drive)
Firmware: SD35
SusWrite @10s intervals: 95 95 91 98 96 103 MB/s
Read 103
Write 99.9
Mixed 50.3
SusWrite 96.4
64% 87.4 MB/s
4K Read 0.5
4K Write 1.5
4K Mixed 0.7
126% 0.9 MB/s
599GB free
Firmware: DE13
SusWrite @10s intervals: 99 101 103 102 102 100 MB/s
Read 93.5
Write 13.7
Mixed 45.8
SusWrite 101
47% 63.5 MB/s
4K Read 0.5
4K Write 1
4K Mixed 0.6
106% 0.7 MB/s
626GB free
Firmware: HP24
SusWrite @10s intervals: 99 97 98 100 100 100 MB/s
Read 94.5
Write 13
Mixed 43.8
SusWrite 98.9
46% 62.6 MB/s
4K Read 0.4
4K Write 1
4K Mixed 0.5
91% 0.63 MB/s
17GB free
Firmware: SD25
SusWrite @10s intervals: 58 56 58 57 61 62 MB/s
Read 68
Write 69.3
Mixed 42
SusWrite 58.7
44% 59.5 MB/s
4K Read 0.5
4K Write 1
4K Mixed 0.5
95% 0.67 MB/s
1,378 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 21,734,915 HDDs tested.


AmazonUS $2107 mins
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Typical ST3750630AS 750GB Builds (Compare 4,314 builds) See popular component choices, score breakdowns and rankings.
Gaming 30%
Desktop 44%
Speed boat
Workstation 32%
Sail boat

Motherboard: Gigabyte GA-78LMT-USB3 R2

EDIT WITH CUSTOM PC BUILDER Value: 50% - Above average Total price: $317

Popular ST3750630AS 750GB compatible motherboards:

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.
Intel Core i5-9400F $145Nvidia GTX 1660S (Super) $244Crucial MX500 250GB $44
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) $38Corsair Vengeance LPX DDR4 3200 C16 2x8GB $76SanDisk 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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