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WDWD40EZRX
Group Average(9 Highest-Voted)
▲ 5135 ▼

Release date: Q3 2013.

VS
Effective Speed 
+33%
Real World Speed
Performance profile from 31,988 user samples
Benchmark your HDD here
31,988 User Benchmarks
Best Bench: 87% 2.5TB free
Worst Bench: 39% 344GB free
Poor: 39% Great: 87%
SPEED RANK: 155th / 1015
Effective Speed
Effective HDD Speed 		66.1 % 87.8 % Much faster effective speed.
+33%
Average Score 
+12%
Read
Avg. Sequential Read Speed 		118 MB/s 155 MB/s Much faster read speed.
+32%
Write
Avg. Sequential Write Speed 		110 MB/s 136 MB/s Faster write speed.
+24%
4K Read
Avg. 4K Random Read Speed 		0.86 MB/s +1% 0.86 MB/s
4K Write
Avg. 4K Random Write Speed 		2.13 MB/s Slightly faster random write.
+7% 		1.99 MB/s
Mixed
Avg. Sequential Mixed IO Speed 		74.1 MB/s 79.2 MB/s Slightly faster mixed IO speed.
+7%
4K Mixed
Avg. 4K Random Mixed IO Speed 		0.88 MB/s Slightly faster random mixed IO.
+5% 		0.83 MB/s
SusWrite
Avg. Sustained Write Speed 		112 MB/s 150 MB/s Much faster sustained write speed.
+34%
Peak Score 
+10%
Read
Peak Sequential Read Speed 		156 MB/s 199 MB/s Faster peak read speed.
+27%
Write
Peak Sequential Write Speed 		146 MB/s 180 MB/s Faster peak write speed.
+24%
4K Read
Peak 4K Random Read Speed 		1 MB/s 1.03 MB/s +3%
4K Write
Peak 4K Random Write Speed 		2.7 MB/s Slightly faster peak random write.
+9% 		2.47 MB/s
Mixed
Peak Sequential Mixed IO Speed 		94.8 MB/s +1% 93.6 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed 		1 MB/s 1 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average 		151 MB/s 195 MB/s Faster peak sustained write speed.
+29%
Value & Sentiment 
+1,225%
Market Share
Based on 53,962,171 HDDs tested
See market share leaders
User Rating
UBM User Rating 		51 % 59.6 % More popular.
+17%
Market Share
Market Share (trailing 30 days) 		0.07 % 3.47 % Insanely higher market share.
+4,856%
Price
Price (score) 		$90 64.8 USD Much cheaper.
+39%
Value
Value For Money 		58.7 % Slightly better value.
+9% 		53.7 %
Nice To Haves 
+8%
Age
Newest 		134 Months 125 Months Slightly more recent.
+8%
Specifications 
Capacity
Capacity 		4TB   —
User Builds 
31,988
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Hard Drive Rankings (Price vs Performance) November 2024 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.
How Fast Is Your HDD? (Bench your build) Size up your PC in less than a minute

Welcome to our 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 value for money upgrades.

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  • - Drive tests include: read, write, sustained write and mixed IO
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  • - Reports are generated and presented on userbenchmark.com
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The Best
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