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WDWD4001FAEX
Group Average(9 Highest-Voted)
▲ 52398 ▼

Release date: Q4 2012.

VS
Effective Speed 
+19%
Real World Speed
Performance profile from 4,113 user samples
Benchmark your HDD here
4,113 User Benchmarks
Best Bench: 93% 3TB free
Worst Bench: 49% 3.5TB free
Poor: 49% Great: 93%
SPEED RANK: 111th / 1015
Effective Speed
Effective HDD Speed 		74.1 % 87.8 % Faster effective speed.
+19%
Average Score 
+4%
Read
Avg. Sequential Read Speed 		132 MB/s 155 MB/s Faster read speed.
+18%
Write
Avg. Sequential Write Speed 		124 MB/s 136 MB/s Faster write speed.
+10%
4K Read
Avg. 4K Random Read Speed 		0.78 MB/s 0.86 MB/s Slightly faster random read.
+10%
4K Write
Avg. 4K Random Write Speed 		3.16 MB/s Much faster random write.
+59% 		1.99 MB/s
Mixed
Avg. Sequential Mixed IO Speed 		86.1 MB/s Slightly faster mixed IO speed.
+9% 		79.2 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed 		0.96 MB/s Faster random mixed IO.
+15% 		0.83 MB/s
SusWrite
Avg. Sustained Write Speed 		125 MB/s 150 MB/s Faster sustained write speed.
+20%
Peak Score 
+2%
Read
Peak Sequential Read Speed 		169 MB/s 199 MB/s Faster peak read speed.
+18%
Write
Peak Sequential Write Speed 		155 MB/s 180 MB/s Faster peak write speed.
+16%
4K Read
Peak 4K Random Read Speed 		1 MB/s 1.03 MB/s +3%
4K Write
Peak 4K Random Write Speed 		3.7 MB/s Much faster peak random write.
+50% 		2.47 MB/s
Mixed
Peak Sequential Mixed IO Speed 		108 MB/s Faster peak mixed IO speed.
+15% 		93.6 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed 		1.1 MB/s Faster peak random mixed IO.
+10% 		1 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average 		159 MB/s 195 MB/s Faster peak sustained write speed.
+22%
Value & Sentiment 
+8,818%
Market Share
Based on 53,961,347 HDDs tested
See market share leaders
User Rating
UBM User Rating 		52 % 59.6 % More popular.
+15%
Market Share
Market Share (trailing 30 days) 		0.01 % 3.49 % Insanely higher market share.
+34,822%
Price
Price (score) 		$259 64.8 USD Hugely cheaper.
+299%
Value
Value For Money 		22.9 % 53.7 % Hugely better value.
+134%
Nice To Haves 
+16%
Age
Newest 		144 Months 125 Months More recent.
+16%
Specifications 
Capacity
Capacity 		4TB   —
Conclusion 
Average Bench 74.1%

I don't understand the pricing on this drive, on the face of it, it looks seriously overpriced. Although the Black has a marginal speed advantage compared to a 3TB Barracuda, one 4TB Caviar Black costs more than two 3TB Barracudas! I have only seen benchmarks from 3 user samples for the 4TB 2012 Black so I will re-visit this recap over the coming months by which time I should have a better sample size. Additional samples may indicate far better performance than I have seen so far. [Aug '13 HDrivePro]

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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.
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