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WDWD20EFRX
WDWD2003FZEX
▲ 52608 ▼

Release date: Q3 2012.

VS
▲ 571,942 ▼

Release date: Q4 2013.

Effective Speed 
+33%
Real World Speed
Performance profile from 208,903 user samples
Benchmark your HDD here
64,359 User Benchmarks
Best Bench: 86% 2TB free
Worst Bench: 45% 2TB free (System drive)
Poor: 45% Great: 86%
SPEED RANK: 148th / 1015
144,544 User Benchmarks
Best Bench: 112% 2TB free
Worst Bench: 60% 683GB free
Poor: 60% Great: 112%
SPEED RANK: 30th / 1015
Effective Speed
Effective HDD Speed 		66.4 % 88.5 % Much faster effective speed.
+33%
Average Score 
+27%
Read
Avg. Sequential Read Speed 		119 MB/s 153 MB/s Faster read speed.
+29%
Write
Avg. Sequential Write Speed 		112 MB/s 161 MB/s Much faster write speed.
+44%
4K Read
Avg. 4K Random Read Speed 		0.8 MB/s 0.95 MB/s Faster random read.
+19%
4K Write
Avg. 4K Random Write Speed 		2.27 MB/s 3.04 MB/s Much faster random write.
+34%
Mixed
Avg. Sequential Mixed IO Speed 		72.6 MB/s 86.7 MB/s Faster mixed IO speed.
+19%
4K Mixed
Avg. 4K Random Mixed IO Speed 		0.89 MB/s 0.95 MB/s Slightly faster random mixed IO.
+7%
SusWrite
Avg. Sustained Write Speed 		112 MB/s 155 MB/s Much faster sustained write speed.
+38%
Peak Score 
+23%
Read
Peak Sequential Read Speed 		155 MB/s 194 MB/s Faster peak read speed.
+25%
Write
Peak Sequential Write Speed 		144 MB/s 207 MB/s Much faster peak write speed.
+44%
4K Read
Peak 4K Random Read Speed 		1 MB/s 1.1 MB/s Faster peak random read.
+10%
4K Write
Peak 4K Random Write Speed 		2.7 MB/s 3.5 MB/s Faster peak random write.
+30%
Mixed
Peak Sequential Mixed IO Speed 		94.3 MB/s 105 MB/s Faster peak mixed IO speed.
+11%
4K Mixed
Peak 4K Random Mixed IO Speed 		1 MB/s 1.1 MB/s Faster peak random mixed IO.
+10%
SusWrite
Peak Sequential Sustained Write 60s Average 		148 MB/s 199 MB/s Much faster peak sustained write speed.
+34%
Value & Sentiment 
+41%
Market Share
Based on 53,955,601 HDDs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.31 % 0.71 % Hugely higher market share.
+129%
Value
Value For Money 		34.5 % 44.3 % Better value.
+28%
User Rating
UBM User Rating 		52 % 57 % Slightly more popular.
+10%
Price
Price (score) 		$77 +4% $80
Nice To Haves 
+10%
Age
Newest 		148 Months 133 Months More recent.
+10%
Specifications 
Capacity
Capacity 		2TB 2TB
Conclusion 
Average Bench 66.4%
Average Bench 88.5%

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]

MORE DETAILS

This is the current version (2013) of Western Digital's best performing, Black, consumer storage drive. A comparison between the 2013 and 2010 versions shows that core real world performance has improved by around 15%. The 38 month old 2010 FAEX Black is also slightly more expensive at the moment, probably because retailers are slowly running out of stock. With average sequential read/write speeds of 150 MB/s and read/write 4k speeds of 0.8/2.9 MB/s the 2013 2TB WD Black has a solid performance profile but it's slightly overpriced. There is better value available amongst other drives in the group test. [Jan '14 HDrivePro]

MORE DETAILS

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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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The Best
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Intel Core i5-12400F $111Nvidia RTX 4060 $290WD Black SN850X M.2 2TB $130
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Intel Core i5-13600K $210Nvidia RTX 4070 $500Crucial T700 M.2 4TB $389
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