WDWD20EFRX
WDWD1003FZEX

Release date: Q3 2012.

Release date: Q4 2013.

Real World Speed
Performance profile from 113,877 user samples
22,486 User Benchmarks
Best Bench: 86% 2TB free
Worst Bench: 40% 832GB free (System drive)
Poor: 40% Great: 86%
SPEED RANK: 159th / 1010
91,391 User Benchmarks
Best Bench: 107% 890GB free
Worst Bench: 55% 211GB free (System drive)
Poor: 55% Great: 107%
SPEED RANK: 60th / 1010
Effective Speed
Effective HDD Speed
65.7 % 83.9 % Faster effective speed.
+28%
Read
Avg. Sequential Read Speed
119 MB/s 156 MB/s Much faster read speed.
+31%
Write
Avg. Sequential Write Speed
110 MB/s 141 MB/s Faster write speed.
+28%
4K Read
Avg. 4K Random Read Speed
0.78 MB/s 1.23 MB/s Much faster random read.
+58%
4K Write
Avg. 4K Random Write Speed
2.26 MB/s 2.49 MB/s Slightly faster random write.
+10%
Mixed
Avg. Sequential Mixed IO Speed
71.4 MB/s 88.2 MB/s Faster mixed IO speed.
+24%
4K Mixed
Avg. 4K Random Mixed IO Speed
0.9 MB/s 1.1 MB/s Faster random mixed IO.
+22%
SusWrite
Avg. Sustained Write Speed
110 MB/s 136 MB/s Faster sustained write speed.
+24%
Read
Peak Sequential Read Speed
158 MB/s 201 MB/s Faster peak read speed.
+27%
Write
Peak Sequential Write Speed
144 MB/s 174 MB/s Faster peak write speed.
+21%
4K Read
Peak 4K Random Read Speed
1 MB/s 1.5 MB/s Much faster peak random read.
+50%
4K Write
Peak 4K Random Write Speed
2.7 MB/s 2.9 MB/s Slightly faster peak random write.
+7%
Mixed
Peak Sequential Mixed IO Speed
96.2 MB/s 110 MB/s Slightly faster peak mixed IO speed.
+14%
4K Mixed
Peak 4K Random Mixed IO Speed
1 MB/s 1.2 MB/s Faster peak random mixed IO.
+20%
SusWrite
Peak Sequential Sustained Write 60s Average
149 MB/s 179 MB/s Faster peak sustained write speed.
+20%
Market Share
Based on 15,013,181 HDDs tested.
Market Share
Market Share (trailing 30 days)
0.27 % 0.94 % Hugely higher market share.
+248%
Value
Value For Money
47.8 % Much better value.
+49%
32 %
User Rating
UBM User Rating
55 % 74 % Much more popular.
+35%
Price
Price (score)
$79 $75 +4%
Age
Newest
79 Months 64 Months More recent.
+19%
Capacity
Capacity
2TB 1TB
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The 2TB version of WD's Red NAS range of hard drives has a performance profile that is similar to that of its larger 3TB sibling. Both drives lag behind the group average significantly in terms of overall performance. With an average read speed of 108 MB/s the 2TB Red is 36% slower than the group leaders which manage an average of 147 MB/s. There is a huge amount of hype around the "NAS" aspects of these drives but there is very little substance in terms of specific characteristics that make this drive better suited to a NAS than any other. The obvious factors such as energy efficiency and operating temperature are only marginally improved on these drives. I would personally prefer one of the far better performing Seagate Barracudas as when looking at a direct comparison of the Barracuda vs the Red it's clear that the performance of the Barracuda is better across the board. [Feb '14 HDrivePro]

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This is the most recent version (2013 FZEX) of Western Digital's best performing consumer storage drive, its predecessor was the WD1002FAEX which is now four years old. With average sequential read/write speeds of 150 MB/s this version outperforms its predecessor by a whopping 50%. Small file random 4K speeds have remained broadly unchanged with average read/write rates of 0.9/2.19 MB/s. Overall the 2013 WD Black has a very good performance profile and it also represents reasonable value for money, at least in the 1TB category. There are some good alternatives to the 2013 Black including the 2012 Blue. Looking at the 2013 Black vs 2012 Blue shows that both drives have similar performance. Power consumption (6.8/6.1 Watts active/idle) and noise levels (29.5 dBA) are also identical making it a tough call between the two. There is however, as always, better value amongst the larger capacities. [Feb '14 HDrivePro]

MORE DETAILS

Hard Drive Rankings (Price vs Performance) February 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]

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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.
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.
  • - 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.

 Frequently Asked Questions

 Best User Rated

The Best.
CPUGPUSSD
Intel Core i7-8700K $360Nvidia GTX 1070 $315Samsung 850 Evo 250GB $78
AMD Ryzen 5 1600 $148Nvidia GTX 1060-6GB $220Samsung 850 Evo 500GB $105
Intel Core i5-8600K $260Nvidia GTX 1080-Ti $808Samsung 850 Pro 256GB $163
HDDRAMUSB
Seagate Barracuda 1TB (2016) $43Corsair Vengeance LPX DDR4 3000 C15 2x8GB $110SanDisk Extreme 64GB $43
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $750SanDisk Extreme 32GB $48
WD Blue 1TB (2012) $43Corsair Vengeance LPX DDR4 3200 C16 2x8GB $120SanDisk Ultra Fit 32GB $12
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