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WDWD4000F9YZ
WDWD10EZEX
▲ 51195 ▼

Release date: Q2 2013.

VS
Effective Speed 
+4%
Real World Speed
Performance profile from 3,107,573 user samples
Benchmark your HDD here
2,519 User Benchmarks
Best Bench: 100% 1.5TB free
Worst Bench: 49% 3TB free
Poor: 49% Great: 100%
SPEED RANK: 77th / 1015
3,105,054 User Benchmarks
Best Bench: 109% 916GB free
Worst Bench: 52% 59GB free
Poor: 52% Great: 109%
SPEED RANK: 60th / 1015
Effective Speed
Effective HDD Speed 		80.5 % 83.4 % +4%
Average Score 
+5%
Read
Avg. Sequential Read Speed 		142 MB/s 155 MB/s Slightly faster read speed.
+9%
Write
Avg. Sequential Write Speed 		135 MB/s 140 MB/s +4%
4K Read
Avg. 4K Random Read Speed 		0.86 MB/s 1.19 MB/s Much faster random read.
+38%
4K Write
Avg. 4K Random Write Speed 		2.97 MB/s Faster random write.
+20% 		2.47 MB/s
Mixed
Avg. Sequential Mixed IO Speed 		89.9 MB/s +1% 89.3 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed 		0.98 MB/s 1.07 MB/s Slightly faster random mixed IO.
+9%
SusWrite
Avg. Sustained Write Speed 		138 MB/s +2% 135 MB/s
Peak Score 
+6%
Read
Peak Sequential Read Speed 		180 MB/s 202 MB/s Faster peak read speed.
+12%
Write
Peak Sequential Write Speed 		168 MB/s 177 MB/s Slightly faster peak write speed.
+5%
4K Read
Peak 4K Random Read Speed 		1.1 MB/s 1.5 MB/s Much faster peak random read.
+36%
4K Write
Peak 4K Random Write Speed 		3.6 MB/s Faster peak random write.
+20% 		3 MB/s
Mixed
Peak Sequential Mixed IO Speed 		115 MB/s +2% 113 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed 		1.2 MB/s 1.2 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average 		170 MB/s 185 MB/s Slightly faster peak sustained write speed.
+9%
Value & Sentiment 
+∞%
Market Share
Based on 53,937,715 HDDs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0 % 13.4 % Insanely higher market share.
+∞%
Value
Value For Money 		39 % 50 % Better value.
+28%
User Rating
UBM User Rating 		51 % 64 % More popular.
+25%
Price
Price (score) 		$165 $33 Much cheaper.
+80%
Nice To Haves 
+7%
Age
Newest 		138 Months Slightly more recent.
+7% 		149 Months
Specifications 
Capacity
Capacity 		4TB 1TB
Conclusion 
Average Bench 80.5%
Average Bench 83.4%

The WD Se is an enterprise class drive designed for use in a NAS or data warehouse. Unlike the Enterprise Xe, which focuses on maximum data throughput, the focus of the Se is on balanced performance, power consumption and reliability. We only have one sample for this drive at present so for now we can't draw any robust conclusions. Based on the data we do have, in terms of value for money the WD Se lands in the middle of the (scarce) 4TB pack, besting the (2012) 4TB black by just 3.4%. From a performance perspective, with both peak and average read/writes coming in at 137/136 MB/s it's hard to tell at this point because we don't know whether to take those figures as peak or average. As averages they are very strong and as peak figures they are relatively weak. We will update this summary when we have more data. In the mean time the Seagate Desktop HDD1.5 remains our 4TB pick. [Jan '14 HDrivePro]

MORE DETAILS

This is the latest version of Western Digital's mid-range Blue drive. At only one year of age this drive is relatively new and the performance figures reflect this. With maximum sequential speeds of 180 MB/s (both read and write) the Blue is amongst the faster drives currently available and in terms of real world performance it beats its predecessor the 2010 Blue (WD10EALS) by around 18%. The 2012 Blue has a single 1TB platter which combined with its 7200 rotation speed allows for above average performance across the board. In terms of value for money a larger capacity drive will nearly always be a better choice but within the 1TB category as a system drive, the 2012 Blue is a very reasonable, if not the best, option. [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]

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