Average Bench: 74.8% (106th of 995)

more Based on 8,538 user benchmarks.  Models: WDC WD30EZRZ-00Z5HB0, WDC WD30 EZRZ-00Z5HB0, WDC WD30 EZRZ-00GXCB0, WDC WD30 EZRZ-00WN9B0, WDC WD30EZRZ-00Z, WDC WD30EZRZ-60Z5HB0, WDC WD30EZRZ-00GXCB0, WDC WD30 EZRZ-22Z5HB0, WDC WD30EZRZ-00WN9B0, WDC WD30EZRZ-00W, WDC WD30EZRZ-22Z5HB0, WDC WD30EZRZ-00G

Good average bench

The WD Blue 3TB (2015) averaged 25.1% 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 Write Speed 2.14MB/s
Avg. Sequential Mixed IO Speed 119MB/s

Average consistency

The range of scores (95th - 5th percentile) for the WD Blue 3TB (2015) is 49.7%. This is a relatively wide range which indicates that the WD Blue 3TB (2015) performs inconsistently under varying real world conditions.


Avg. 4K Random Mixed IO Speed 0.23MB/s
Avg. Sequential Write Speed 128MB/s

Average Bench

(Based on 8,538 samples)
Min Avg Max
82.6 Read 133 180
80.6 Write 128 167
73.7 Mixed 119 156
95.1% 127 MB/s
Min Avg Max
0.45 4K Read 0.76 0.97
1.42 4K Write 2.14 2.67
0.16 4K Mixed 0.23 0.29
96.9% 1.04 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest HDD (mainstream) averages a speed of 100%
2.5TB free
Firmware: 80.00A80 Max speed: SATA 3.0 600 MB/s
Read 140
Write 96.6
Mixed 131
93% 122 MB/s
4K Read 0.83
4K Write 0.98
4K Mixed 0.17
72% 0.66 MB/s
1.5TB free
Firmware: 80.00A80 Max speed: SATA 3.0 600 MB/s
Read 113
Write 119
Mixed 103
84% 112 MB/s
4K Read 0.69
4K Write 2.21
4K Mixed 0.25
97% 1.05 MB/s
898GB free
Firmware: 80.00A80 Max speed: SATA 3.0 600 MB/s
Read 112
Write 117
Mixed 119
88% 116 MB/s
4K Read 0.79
4K Write 0.34
4K Mixed 0.23
65% 0.45 MB/s
8,538 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 8,300,895 HDDs tested.


Approx. $112 @ launch in Aug '15
EbayUS $755 mins
AmazonUS $8719 mins
NeweggUS $876 hrs
BHPhotoUS $9020 months
OutletPCUS $9513 hrs
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Typical Blue 3TB (2015) Builds (Compare 18,678 builds) See popular component choices, score breakdowns and rankings.
Gaming 94%
Nuclear submarine
Desktop 84%
Aircraft carrier
Workstation 65%
Battle cruiser

Motherboard: Asus Z170 PRO GAMING - $157

EDIT WITH CUSTOM PC BUILDER Value: 86% - Excellent Total price: $1,185

Popular Blue 3TB (2015) 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.

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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.
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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

 Best User Rated

The Best.
Intel Core i7-8700K $330Nvidia GTX 1070 $447Samsung 850 Evo 250GB $85
Intel Core i7-7700K $290Nvidia GTX 1060-6GB $335Samsung 850 Evo 500GB $150
AMD Ryzen 5 1600 $188AMD RX 480 $400Samsung 850 Pro 256GB $163
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $190SanDisk Extreme 64GB $44
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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