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WDWD20PURX
WDWD2003FZEX
▲ 52830 ▼

Release date: Q3 2014.

VS
▲ 571,942 ▼

Release date: Q4 2013.

Effective Speed 
+34%
Real World Speed
Performance profile from 163,670 user samples
Benchmark your HDD here
19,126 User Benchmarks
Best Bench: 86% 2TB free
Worst Bench: 39% 122GB free
Poor: 39% Great: 86%
SPEED RANK: 153rd / 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 		66.2 % 88.5 % Much faster effective speed.
+34%
Average Score 
+31%
Read
Avg. Sequential Read Speed 		116 MB/s 153 MB/s Much faster read speed.
+32%
Write
Avg. Sequential Write Speed 		115 MB/s 161 MB/s Much faster write speed.
+40%
4K Read
Avg. 4K Random Read Speed 		0.74 MB/s 0.95 MB/s Faster random read.
+28%
4K Write
Avg. 4K Random Write Speed 		2.25 MB/s 3.04 MB/s Much faster random write.
+35%
Mixed
Avg. Sequential Mixed IO Speed 		62.2 MB/s 86.7 MB/s Much faster mixed IO speed.
+39%
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 		115 MB/s 155 MB/s Much faster sustained write speed.
+35%
Peak Score 
+28%
Read
Peak Sequential Read Speed 		152 MB/s 194 MB/s Faster peak read speed.
+28%
Write
Peak Sequential Write Speed 		148 MB/s 207 MB/s Much faster peak write speed.
+40%
4K Read
Peak 4K Random Read Speed 		0.9 MB/s 1.1 MB/s Faster peak random read.
+22%
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 		79 MB/s 105 MB/s Much faster peak mixed IO speed.
+33%
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 		151 MB/s 199 MB/s Much faster peak sustained write speed.
+32%
Value & Sentiment 
+81%
Market Share
Based on 53,961,383 HDDs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.15 % 0.63 % Hugely higher market share.
+320%
Value
Value For Money 		39.5 % 44.3 % Better value.
+12%
User Rating
UBM User Rating 		52 % 57 % Slightly more popular.
+10%
Price
Price (score) 		$67 Cheaper.
+16% 		$80
Nice To Haves 
+7%
Age
Newest 		124 Months Slightly more recent.
+7% 		133 Months
Specifications 
Capacity
Capacity 		2TB 2TB
Conclusion 
Average Bench 66.2%
Average Bench 88.5%

The WD Purple is a surveillance drive with low power consumption and a design that's optimized for 24x7 operation. There is actually little beyond marketing that separates the Purple from the Red and Green drives. They all share almost identical hardware. The thing that does differentiate the Purple drives is their firmware which supports AllFrame, a surveillance specific feature. Allframe handles the cache in a way that is optimized for video streams. The AllFrame technology however is only enabled when used in conjunction with a supported host controller, most of which are only found in dedicated NVR (Network Video Recording) devices. As a result there is no benefit in using this drive in a HTPC to record video streams, because the surveillance specific functions won't be enabled. In terms of effective speed the Purple lags the new Red and Green drives by around 26%. [Oct '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.
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